Sixteen page booklet Geological Survey Report, Mines Department Victoria. 'Geology of the Bendigo Area' by H.E. Wilkinson. Photo of Lansell's 222 Mine on the New Chum Line, Bendigo. Tallest poppet head on the field, approximately 38 m high, with a shaft depth of 635 m.bendigo, mining, geological survey report

Sphalerite or sphaelerite is named from the Greek word for 'treacherous' or 'deceiver' as specimens can vary widely in appearance, making them hard to visually identify. It is a zinc sulfide with the chemical composition (Zn,Fe)S, the most important ore of zinc. Specimens of sphalerite can contain iron as a substitute for up to 25% of the usual zinc present, as well as trace elements of gallium, cadmium, geranium and indium. Small amounts of arsenic and manganese may also be detected. Sphalerite is found in igneous, sedimentary and metamorphic rocks. It forms when carbonate rock encounters acidic, zinc-bearing fluid. It often forms in veins or in fissures of the existing rock, with colours and crystal shapes dependent on the composition of the the combining elements. It forms isometric crystal shapes including cubes, tetrahedrons, octahedrons, dodecahedrons. This specimen was collected in approximately 1852, in Broken Hill, NSW, as an adjunct to the Geological Survey of Victoria. It was donated to the Museum in 1868. Victoria and other regions of Australia were surveyed for sites of potential mineral wealth throughout the 19th Century. The identification of sites containing valuable commodities such as gold, iron ore and gemstones in a locality had the potential to shape the development and history of communities and industries in the area. The discovery of gold in Victoria, for instance, had a significant influence on the development of the area now known as 'the goldfields', including Beechworth; the city of Melbourne and Victoria as a whole.The specimen is significant as an examples of surveying activity undertaken to assess and direct the development of the mineral resource industries in Victoria and Australia, as well as the movement to expand human knowledge of earth sciences such as mineralogy and geology in the nineteenth century.A pipe-shaped specimen of sulfide-mineral zinc ore displaying patches of black, brown, beige and gold colouring. The main item has associated broken pieces. geological specimen, geology, geology collection, burke museum, beechworth, mineralogy, indigo shire, geological survey, sphalerite, sphaelerite, zinc ore, broken hill, nsw, victoria, galena, fluorite, chalcopyrite, lead, cadmium, gallium, germanium, indium, iron

Dolomite is a mineral, calcium magnesium carbonate, with the chemical formula CaMg(CO3)2. It is a principle component of various rock types sometimes also referred to as dolomite, including dolostone, dolomitic marble and dolomitic limestone (according to the composition of each type). Dolomite rock is found in sedimentary basins throughout the world, comprising approximately 2% of the Earth's crust. It is formed when lime mud or limestone encounters groundwater containing magnesium. Dolomite can contain elements such as lead, zinc and copper. Dolomite and limestone are used in various construction, landscaping and agricultural processes. This specimen was donated to the Burke Museum in 1868 by Alfred Selwyn as part of the Geological Survey of Victoria. It was donated to the Museum in 1868. Victoria and other regions of Australia were surveyed for sites of potential mineral wealth throughout the 19th Century. The identification of sites containing valuable commodities such as gold, iron ore and gemstones in a locality had the potential to shape the development and history of communities and industries in the area. The discovery of gold in Victoria, for instance, had a significant influence on the development of the area now known as 'the goldfields', including Beechworth; the city of Melbourne and Victoria as a whole. Dolomite and limestone are mined at several locations in Victoria, including sites in the North-East of the state in Bindi and Limestone Creek. There are notable dolomite deposits in most Australian states. The dolomitised form of the mineral tends to come from older limestone deposits, formed during the palaeozoic era in marine settings, so this specimen may have come from a deposit located along a coastline in Victoria or another state. The specimen is significant as an example of surveying activity undertaken to assess and direct the development of the mineral resource industries in Victoria and Australia, as well as the movement to expand human knowledge of earth sciences such as mineralogy and geology in the nineteenth century. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.Hand-sized piece of pale pink dolomite (calcium magnesium carbonate) with dark grey rim and hollowed centre. geological specimen, geology, geology collection, burke museum, beechworth, dolomite, mineralogy, geological survey, alfred selwyn, limestone, calcium magnesium carbonate

See Geological Survey Victoria: GSV Reference ID: 43711 South Nell Gwynne 'The Central Nell Gwynne which recently took over the reef prospected by Nell Gwynne ( B.M.L.) will continue to work the mine until the new Company, South Nell Gwynne Gold Mining Company is ready to take over. The main development work is at the 1080 feet level where stoping is being carried out on a spur system which has shown several colours of gold. ...The trial crushing in shaft sinking gave 4 dwt per gold per ton..... ' ( 29th July 1938, 'The Herald, Melbourne) 1941 Geological Survey Vic: SOUTH NELL GWYNNE, BENDIGO. MINING AND GEOLOGICAL JOURNAL: ' Journal, dark green hard cover, buff bindings on spine and corners. On spine of book in gold print: ' Share Register South Nell Gwynne G.M. Co. N.L.' South Nell Gwynne Gold Mining Company share register, 1938 to 1941. Alphabetical index in front, four hundred pages. Entries detail date of purchase, name of shareholder, distinctive number range, call account and paid by. Page 299 has a list of forfeited shares in the Company with a list of shares sold by James Andrew & Co., on 8th December 1938. Shares were 'forfeited for non payment of the 2nd call of threepence per share'. Share register is part of the Margaret Roberts Collection. bendigo, goldmining, goldfield, south nell gwynne gold mining co., nell gwynne, margaret roberts collection, mr j.j. stanistreet, mine manager

Coorongite is a dark, rubber-like, highly resilient structureless algal deposit. In the Coorong district of South Australia it occurs in moderate quantities associated with the coastal swamps and sand dunes which extend for a considerable distance east of the mouth of the Murray. This particular specimen was recovered from the south of the Coorong River, South Australia. A type of sediment rich in organic matter, Coorongite is the unlithified end-member of the sapropelic coal series. The members of the sapropelic coal series can be ranked in order as sapropel (the unlithified form), sapropelic-lignite, and sapropelic-coal (the lithified forms) based on increasing carbon content and decreasing volatile content. Sapropel (Coorongite) is an unlithified dark, pulpy, fine organic mud containing concentrations of algae and miospores that are more or less identifiable. Coorongite is typically found as an algae like substance, that can be found in irregular size pieces. Coorongite was believed to be dried up oil due to its rubber-like texture. The Coorongite is also soft to the point where it can be cut into with a knife or it can be broken and torn by hand. Otherwise known as 'Kurangk', the Coorong River is home to the Ngarrindjeri people, which acts as both a place for gathering food and a spiritual place. In 1852 the first sight of Coorongite was found along the Coorong River. The finders mistook the Coorongite for dried up oil, which lead to the belief that there were oil reserves under the Coorong River. Between the 1860s and the 1930s the Coorong River became a place where mining oil and Coorongite became precedent. Nowadays, the local council and the South Australian Government are working together with the Ngarrindjeri people to sustain and preserve the Coorong River and the culture that is with it. Soon after gold was discovered in 1851, Victoria’s Governor La Trobe wrote to the Colonial Office in London, urging ‘the propriety of selecting and appointing as Mineral Surveyor for this Colony a gentleman possessed of the requisite qualifications and acquaintance with geological science and phenomena’. Alfred Selwyn was appointed geological surveyor in Australia in 1852 which began the Geological Survey of Victoria. Selwyn went on to collect geological samples and catalogue thousands of specimens around Australia. In 1853-69 the Geological Survey issued under Selwyn's direction sixty-one geological maps and numerous reports; they were of such high standard that a writer in the Quarterly Journal of the Geological Society of London bracketed the survey with that of the United States of America as the best in the world. During his years spent in Australia, Selwyn collected numerous significant geological specimens, examples of which are held in collections such as the Burke Museum.Coorongite is considered to be a mineral with a unique texture, where it can be both hard and soft. Coorongite can also be considered to be a rare mineral, as it is only located along the Coorong River and due to the mining of it, has left very few sources. It was believed at one point that Coorongite could be used to replace oil. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.Three solid varyingly hand-sized pieces of wooden appearing organic matter derived from the river in the Coorong District in South Australia. A rubber-like, highly resilient structureless algal deposit.Specimen 245 page 69 / in Descriptive Register / "Elcestic Bitumen, / Coorangite" South of / Coorung River, South Australia . / C. WIllman / 15/4/21burke museum, beechwoth, indigo shire, beechworth museum, geological, geological specimen, mineraology, coorong, coorong river, kurangk, ngarrindjeri, south australia, coorongite, coorongite specimen

This particular geological specimen was found in Mount Franklin or Lalgambook in Djadjawurrung, located between Daylesford and Newstead, approximately ninety minutes drive from Melbourne. The mountain is an example of a breached scoria cone (a steep conical hill of loose pyroclastic fragments) which was created by a volcanic eruption about 470,000 years ago, a date which may indicate the age of this geological specimen. The volcanic eruptions of Mount Franklin were most likely witnessed by members of the Dja Dja Wurrung Aboriginal tribe, who referred to this country as the 'smoking grounds'. Mount Franklin and the surrounding area appears to have been a place of considerable religious significance to Aboriginal people, there is evidence which indicates that frequent large ceremonial gatherings took place in the area. Basalt is the most common rock on Earth’s surface, more than 90% of all volcanic rock on Earth is basalt. Basalt is an aphanitic extrusive igneous rock formed from the rapid cooling of low-viscosity lava exposed at or very near the surface of a rocky planet or moon. Specimens are black in colour and weather to dark green or brown. Basalt is rich in iron and magnesium and is mainly composed of olivine, pyroxene, and plagioclase. Olivine is the name of a group of rock-forming silicate minerals with compositions ranging between Mg2SiO4 and Fe2SiO4. Unlike other minerals, Olivine has a very high crystallisation temperature which makes it the first of the minerals to crystallise from magma. As magma cools, the crystals begin to form and settle on the bottom of the lava and form basalts that are abnormally enriched in olivine in the lower part of lava flows. According to H. M. King (on geology.com) "Olivine is thought to be an important mineral in Earth's mantle. Its presence as a mantle mineral has been inferred by a change in the behaviour of seismic waves as they cross the boundary between Earth's crust and mantle". Lava from Mount Franklin and other volcanoes in the area filled valleys and buried the gold bearing streams that became the renowned ‘deep leads’ of the gold mining era. In 1852, as part of the Victorian gold rush, gold was discovered in the immediate area, this gold was created by lava flows during the Newer Volcanic period, which were mined intensively during the nineteenth century. Around 1865 the presence of a deep lead in Mount Franklin was established. Deep lead mining was initially unsuccessful, and it was not until the late 1870s that the Franklinford Gold Mining Company mined at Mount Franklin on a significant scale. A few years later the Mount Franklin Estate Gold Mining Company also struck gold, followed by the Shakespeare and Great Western companies in the mid-1880s. By the late 1880s, however, deep lead mining had ceased in the area. Soon after gold was discovered in 1851, Victoria’s Governor La Trobe wrote to the Colonial Office in London, urging ‘the propriety of selecting and appointing as Mineral Surveyor for this Colony a gentleman possessed of the requisite qualifications and acquaintance with geological science and phenomena’. Alfred Selwyn was appointed geological surveyor in Australia in 1852 which began the Geological Survey of Victoria. In 1853-69 the Geological Survey issued under Selwyn's direction sixty-one geological maps and numerous reports; they were of such high standard that a writer in the Quarterly Journal of the Geological Society of London bracketed the survey with that of the United States of America as the best in the world. During his years spent in Australia, Selwyn collected numerous significant geological specimens, examples of which are held in collections such as the Burke Museum.This geological specimen is an example of basalt and olivine which shows the volcanic lava activity and geographical specific nature of Mt Franklin as a significant volcanic site. According to Agriculture Victoria 'The crater is one of the deepest in the Central Highlands area. It is a major megacryst site with some of the largest known Victorian examples of megacrysts of augite and an orthoclase. The small parasitic mound of Lady Franklin on the western flanks adds to the geological interest of the site'. This specimen also highlights the locality as a significant place for both indigenous activity and Victorian gold rush era mining practices. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.An angular, solid hand-sized piece of grey volcanic Basalt with green/brown Olivine phenocrysts along one flat edge.Olivine in basalt / - label is probably / correct. / C. Willman / 15/4/21burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, basalt, igneous rock, igneous-volcanic, volcanic geology, volcanic, olivine, olivine specimen, basaltoid

This large, leather bound journal was made for the Public Library and Burke Museum in Beechworth by book manufacturer, William Detmold in 1875. It was commissioned by the President of the Library and Burke Museum committee, Dr Antoine Mousse, for the purpose of cataloguing all the items in the collection. The cataloguer was the curator at that time, William Morton, whose hand-writing appears in the journal today. When William Morton first started recording in this journal in 1875, there were already a number of existing items in the institution. The Public Library and Burke Museum in Beechworth had actually been operating since the 1850s; first as a Young Men’s Association in 1856, then as Beechworth Athenaeum in 1858, then as the Beechworth Public Library in 1860. Then in 1861 when news of the death of Beechworth’s former police superintended, Robert O’Hara Burke, reached the town, it was agreed that the Public Library would also become a museum to tribute his legacy, renaming it as the ‘Public Library and Robert O’Hara Burke Memorial Museum, Beechworth’. Many of the items from the early institutions would have been used to form the nucleus of this new organisation. Plus, the additional items that were either collected or donated to develop it into a museum. The catalogue is extensive. There are exactly 461 pages of recorded items, each page detailing the various collections the museum acquired in the late 19th century. Collections recorded in this catalogue include a large collection of geological specimens, that were given to the museum in 1868 by the Geological Survey Department of Victoria. A large collection of taxidermy mounts, that were given to the museum as skins by the Museum of Australia in 1865. An extensive collection of Aboriginal artefacts that were purchased from amateur anthropologist R. E . Johns in 1868. As well as artworks, charts, photographs, machinery, maps etc., all of which have been held in the museum since. This catalogue also details the governance and management of the organisation. There were originally 30 rules that governed the actions for the management committee and, while anyone could read in the free library, only subscribers could borrow two books and one periodical. At first, subscriptions rates were 7/6 a quarter. This was later changed to £1 per annum, paid quarterly in advance. This was a considerable amount; 7/6 per quarter meant that the annual fee was £1.10. This was equivalent to about £650.00 or about $1,182.00AUD today, while the reduced subscription fee of £1 a year was the equivalent to £450.00 or about $818.00AUD today. Membership of the athenaeum would have been the reserve of the town's notable citizens. The vale of the catalogue lies not only in its historical connect with the establishment of the Athenaeum and the current museum, but also in its record of the names and positions of all members of the institution's committees of management from 1875-1876. This is a unique object that contains important records for a notable country town. Large brown leather bound book made in 1875 for the Beechworth library and museum by William Detmond. Inside is a comprehensive and detailed itemised listing of the paintings, drawings, charts, photographs, specimens and books that entered the institution from 1850 -1882. non-fictionCover: RULES / CATALOGUE OF BOOKS / INVENTORY OF PICTURES, DRAWINGS, / MAPS, CHARTS, FURNITURE, SPECIMENS / OF THE / PUBLIC LIBRARY AND BURKE MUSEUM / BEECHWORTHburke museum, beechworth, catalogue, museum catalogue, 1875, william morton, william detmold, exposition universelle, ferdinand von mueller, public library, collection, book, leather bound, restored, digitised, robert o'hara burke, hand-written

alan gardiner collection, maps

Malachite is typically found as crystalline aggregates or crusts, often banded in appearance, like agates. It is also often found as botryoidal clusters of radiating crystals, and as mammillary aggregates as well. Single crystals and clusters of distinguishable crystals are uncommon, but when found they are typically acicular to prismatic. It is also frequently found as a pseudomorph after Azurite crystals, which are generally more tabular in shape. This particular specimen was recovered from the Burra Burra Copper Mine in Burra, South Australia. Otherwise known as the 'Monster Mine', the Burra Burra Copper Mine was first established in 1848 upon the discovery of copper deposits in 1845. Within a few short years, people from around the world migrated to Burra to lay their claim in the copper economy. By April 1848 the mine was employing over 567 people and supporting a population of 1,500 in the local township. Up until 1860, the mine was the largest metals mine in Australia, producing approximately 50,000 tonnes of copper between 1845 to its closure in 1877. The Burra Burra Mine was also famous for a number of other specimens, including; crystalline azurite, cuprite, and botryoidal and malachite. Malachite is considered a rare gemstone in that the original deposits for the stones have been depleted leaving behind very few sources. In addition, the use of Malachite as gemstones and sculptural materials remains just as popular today as they were throughout history. It is quite common to cut the stone into beads for jewellery. The fact that Malachite has such a rich colour and one that does not fade with time or when exposed to light makes it particularly rare. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. A solid hand-sized copper carbonate hydroxide mineral with shades of blue and light green throughout. burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, burra, burra burra mine, south australia, malachite, malachite specimen

Malachite is a green copper carbonate hydroxide mineral and was one of the first ores used to make copper metal. Malachite has been utilised as a gemstone and sculptural material in the past as its distinctive green color does not fade when exposed to light or after long periods of time. Malachite is formed at shallow depths in the ground, in the oxidizing zone above copper deposits. The material has also been used as a pigment for painting throughout history. This particular specimen was recovered from the Burra Burra Copper Mine in Burra, South Australia. Otherwise known as the 'Monster Mine', the Burra Burra Copper Mine was first established in 1848 upon the discovery of copper deposits in 1845. Within a few short years, people from around the world migrated to Burra to lay their claim in the copper economy. By April 1848 the mine was employing over 567 people and supporting a population of 1,500 in the local township. Up until 1860, the mine was the largest metals mine in Australia, producing approximately 50,000 tonnes of copper between 1845 to its closure in 1877. The Burra Burra Mine was also famous for a number of other specimens, including; crystalline azurite, cuprite, and botryoidal and malachite.Malachite is considered a rare gemstone in that the original deposits for the stones have been depleted leaving behind very few sources. In addition, the use of Malachite as gemstones and sculptural materials remains just as popular today as they were throughout history. It is quite common to cut the stone into beads for jewellery. The fact that Malachite has such a rich colour and one that does not fade with time or when exposed to light makes it particularly rare. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. A solid hand-sized copper carbonate hydroxide mineral with shades of yellow, blue, and light green throughout.geological, geological specimen, burke museum, indigo shire, malachite, malachite specimen, burra burra mine, burra, south australia, australian mines, mines, monster mine

Galena Chalcopyrite is the earth's primary ore of lead and is mined from a large number of deposits in many countries. It is also an important source of silver. Galena Chalcopyrite is one of the most abundant and widely distributed sulfide minerals across the world. The mineral is found in igneous and metamorphic rocks in medium- to low-temperature hydrothermal veins. This specific specimen was recovered from the mines in Broken Hill, New South Wales. The mines in Broken Hill were first established after Charles Rasp discovered a large amount of silver-lead-zinc ore-body in the area in 1883. BHP (Broken Hill Proprietary) mining company was then established in 1885 and quickly became the lead in Australia's mining industry after they began excavating and exporting the country's largest amount of lead, silver, and zinc. This feat generated over $100 billion in wealth for the company.Galena Chalcopyrite is signifiant as it represents the catalyst for the rise of Australia's most influential mining companies - BHP. The mineral was one of the first to be mined in the country and after being made into lead, was used for a variety of things such as paint, batteries, ammunition, and plumbing materials before it was known to be harmful to humans. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. A grey, solid hand-sized lead sulfide mineral with a silver metallic luster.burke museum, beechworth, geological, geological specimen, galena, galena chalcopyrite, chalcopyrite, broken hill, bhp, bhp mining, broken hill mine, mine, australia mine, lead, lead mine

Feldspathic arenites are sandstones that contain less than 90% quartz, and more feldspar than unstable lithic fragments, and minor accessory minerals.Feldspathic sandstones are commonly immature or sub-mature.These sandstones occur in association with cratonic or stable shelf settings. Feldspathic sandstones are derived from granitic-type, primary crystalline, rocks. If the sandstone is dominantly plagioclase, then it is igneous in origin Sandstone features prominently in public buildings throughout Victoria. Most of the sandstone used as dimension stone in the State came from three sources: the Heatherlie quarry in the Grampians (Silurian), the Bacchus Marsh area (Permian), and the Barrabool Hills near Geelong (Cretaceous).Sandstone features prominently in public buildings throughout Victoria, making this specimen special as it shows the materials used by Victorian building companies. Sandstone can also be crushed, crushed stone is used in the construction of roadways and road structures such as bridges, and in buildings, both commercial and residential. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. A feldspar-rich sandstone, a sandstone intermediate in composition between an arkosic sandstone and a quartz sandstone, containing 10% to 25% feldspar and less than 20% matrix material of clay, sericite, and chlorite. Feldspathic arenite containing less than 90 percent of the composition of quartz. Feldspar is the main composition. Feldspathic arenite may contain fragments of unstable rock, and a little amount of other minerals such as mica and heavy minerals. Some feldspathic arenite have pink or red color because of the presence of potassium feldspar or iron oxide. There are also colored light gray to white. These sandstones are usually medium to coarse grained and can contain a high percentage of granules with angular until subangular roundness. The content of the matrix can appear as the rest up to more than 15 percent, and sorting of grains can present as moderate to poorly sorted. Feldspathic sandstones are generally immature in textural maturity. Feldspathic arenite can not be judged from the structure of the sediment. Bedding can emerge from the laminate parallel to the crossbed. Fossils may appear in the layer deposited on the sea. Feldspathic arenites usually appear on the craton or the continental shelf, which can be associated with conglomerate, quartz lithic arenite, carbonate rock, or evaporites. This sandstone may also appear on the succession of sedimentary basins deposited on an unstable or deep sea, and moving arc setting. According to Pettijohn (1963) Arkose make up about 15 percent of all sandstones. Some Arkose formed in situ when the granite and related rocks disintegrate and generate granular sediments. Most of the material feldspathic sandstones derived from primary crystalline granitic rocks, such as granite or metasomatic rocks containing abundant potassium feldspar. Mineral contained in sandstones is mostly a form of plagioclase feldspar derived from quartz diorite or volcanic rock. Feldspar contained on this sandstone comes from arid to cool climates when the chemical weathering process is reduced.sandstone, natural stone, feldspathic sandstone, burke museum, geology, geological, geological specimen

Ilvaite has acquired its name from Ilva (Latin for Elba) Island, Greece, where Ilvaite is most commonly found. The geological setting in which Ilvaite occurs is through contact with magnetite, zinc and copper ore deposits, along with contact metamorphic deposits and zeolite zones. llvaite crystallizes in the form of black prismatic crystals and columns . This specimen was retrieved from Broken hill, known as the world's richest and largest zinc-lead ore deposit. Because of Ilvaite's often unaesthetic crystal formations compared to other minerals, Ilvaite is uncommon in most rock collections, particularly specimens that are not well formed, such as this one. Ilvaite is also a member of the Sorosilicate subclass of the silicate minerals, which have an unusual basic unit of Si2O7, making Ilvaite a unique mineral. Given that Ilvaite is not commonly found in Australia, it marks a unique contribution to an Australian collection of minerals. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A solid hand-sized ferrous iron analogue mineral with of black with shades of beige Ilvaite is a brittle, opaque rock formation that has acquired its name from Ilva (Latin for Elba) Island, Greece, where Ilvaite is most commonly found. The geological setting in which Ilvaite occurs is through contact with magnetite, zinc and copper ore deposits, along with contact metamorphic deposits and zeolite zones. llvaite crystallizes in the form of black prismatic crystals and columns rock, mineral, ilvaite, ilvaite specimen

This specimen was recovered from the Nigretta Falls (previously named the Upper Wannon Falls), Victoria. The falls are fed by the Wannon River that has its head waters in the Grampians mountains. Approx. 10km upstream of the Wannon Falls, Nigretta is a multi-channel segmented cascade of smaller drops and bounces guided by patterns of joints in a much older (Devonian) rhyolitic volcanic rock. Both the Wannon and Nigretta Falls are iconic landscape features, entrenched in the history and identity of the region. These falls are particularly rare as they are the product of volcanic activity, which is unique in the context of the Volcanic Plain of Victoria. Waterfalls of this capacity are generally associated with the Uplands areas of Victoria, rather than the edges of the Volcanic Plain. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. A solid, dark grey mineral specimen with pale terracotta coloured inclusions. Rhyodacite is a volcanic rock intermediate in composition between dacite and rhyolite. Rhyodacites form from rapid cooling of lava relatively rich in silica and low in alkali metal oxides.GEOLOGICAL SURVEY / R / S 55 FELSTONE PORPHYburke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, porphyritic rhyodacite, lava, nigretta falls, upper wannon falls, dacite, rhyolite, volcanic geology

This specimen was recovered from Silverton Mine in Broken Hill, New South Wales. Otherwise known as the 'Day Dream Mine', the Silverton Mine was first established in 1883, when silver and lead deposits where discovered. Within a few short years, the population of Broken Hill reached 3000 people. As of today the Silverton Mine is still open, and has produced over 200 million tonnes of ore, which has generated over $100 billion. The Silverton Mine was also famous for a number of specimens such as silver, iron and zinc.Copper is considered to be a rare ore in that finding it in its pure form is rare. Nowadays when mining for Copper it is often found in mixed in with other minerals or it is recycled from use. Moreover, Copper is found in a range of everyday uses such as coins, cookware, pipes, heating conductors and anything that generate electricity. The fact that Copper is heat a heat conductor, electricity conductor and it does not corrode easily, makes this ore a versatile and useful. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A solid hand-sized cube-shaped sulfide and oxide with shades of green, grey and brown throughout. Copper is typically found as nuggets in the ground. It can be found in a range of forms such as its native state; mixed with other ores, such as zinc and iron; as porphyry copper deposits; and as major deposits. Porphyry deposits are when the mineral is scattered evenly throughout the rock. Major deposits are when the mineral is scattered amongst other minerals.burke museum, beechworth, indigo shire, beechworth musum, geological, geological specimen, mineraology, copper, copper ore, copper ore speciment, broken hill, new south wales

This particular specimen was recovered from the Lal Lal Coal and Iron Mine in Victoria, 19km from Ballarat. Brown Coal was discovered here in 1857, just alongside the Geelong to Ballarat Railway line. This discovery of lignite (brown coal) was the first in Victoria, which would bring important benefits to the region and state, both of which had previously been reliant on coal imports. In the 1860s, iron ore was found just 5km from Lal Lal, and the area was converted into an Iron Ore Mine. The Lal Lal Iron Mining Company took over operations in 1874, who then peaked iron production in 1884. This mine continued operations until June 1884, when the blast furnace was extinguished and never recommenced. The blast furnace at Lal Lal is considered one of the most important and highly significant sites ion early industrial history in Australia, as it is the only remaining best furnace from the nineteenth century in the Southern Hemisphere. The furnace ruins are 17 metres high, and are clearly visible today on Iron Mine Road, Lal Lal, near the Bungal Dam. This specimen of Lignite (brown coal) is significant, as it was mined from the area where brown coal was first discovered in Victoria, leading to an important and controversial future of the mining and use of brown coal in this State. The Victorian Heritage Database has listed the Lal Lal Coal Mine with local significance, with their Statement of Significance stating: "The Lal Lal coal mine is historically significant as the site of the first discovery of lignite (brown coal) in Victoria, and one that promised important benefits to regional and state industries that were reliant on coal imports at the time. The significance of the stie is reduced by the poor state of preservation of the coal mining and processing fabric". This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A hand-sized light-weight, soft and combustable sedimentary rock specimen, that is dark brown in colour. The specimen has jagged edges, as though parts of the rock have crumbled away. Brown coal, or Lignite, is formed naturally from compressed peat, and is typically found in natural basins. The stages to the formation of coal ('coalification') begin with plant material and wood, which will decay if it is not subjected to deep burial or heating, and turn into Peat. Peat, when sufficiently compressed naturally, will turn into Brown Coal (Lignite), and finally into Black Coal (sub-bituminous, bituminous and anthracite). Each successive stage has a higher energy content and lower water content. It is brownish-black in colour. Brown Coal has a high moisture content, between 50 and 75 percent, and a low carbon content. Some Brown Coals may be stratified, with layers of plant matter, which means little coalification has occurred beyond the peat natural processing stage. When Brown Coal is submerged in dilute nitric acid or boiling potassium hydroxide solution, it reacts to produce a reddish solution, of which higher-ranked coals do not. When brown coal is pulverised and burned in boilers, the steam is used to drive turbines, which generates electricity. It is the lowest rank of coal, as when burned, it creates a relatively low heat content, which in turn does not create a great output of steam. burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, brown coal, brown coal specimen, lignite, lal lal, lal lal coal mine, lal lal iron mine, ballarat, blast furnace

Gabo Island sits off the coast of East Gippsland in Victoria, with cliffs of granite in a relatively unique red/pink colour. Early attempts to build a lighthouse on the island were abandoned due to poor foundations, but when a ship ran aground on the nearby Tullaberga Island in 1853 and led to the death of 37 people, efforts were reignited. Construction of a new lighthouse was completed by 1858, using Gabo Island granite. The lighthouse is Australia's second tallest in Australia and continues to play an important role in guiding boats around the coast as they journey between Melbourne and Sydney. The distinct pink colour from the granite means the lighthouse continues to be a defining feature of the island. Gabo Island granite was also used to construct the Treasury Building at 117 Macquarie Street in Sydney, now the Intercontinental Hotel.Granite in the pink colour of this specimen is relatively rare. The connection to the lighthouse on Gabo Island also gives the specimen historic significance and social significance regarding the maritime history of Victoria. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A solid palm-sized mineral, coloured by flecks of pink, red, and grey. Granite is formed by the slow crystallisation of magma below the earth's surface. It is typically composed of a mix of quartz, feldspar, and other minerals, though syenitic granite like this sample has a smaller amount of quartz than typical granite. This different mineral composition leads to the more distinct pink and red colouring.First sticker: [torn]logical survey / R........ S........ / Loc Gabo Island / 1/4 Sheet / Second Sticker: 15 Third Sticker: Syenitic Graniteburke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, gabo island, gabo island lighthouse, lighthouse, granite, coast, coastal, granite specimen, victoria, coastal cliffs

In Australia, precious opal is found in Cretaceous age sandstones and mudstones. These sedimentary rocks were deeply weathered and this weathering released silica into the groundwater.Australia is the only part of the world where opalised animal and plant fossils have been found. Opal artefacts several thousands of years old have been discovered in East Africa. As early as 250 BC the Romans prized opals, thought to have come from mines in Eastern Europe, the ancient world's main source of opals. There are many aboriginal dreamtime stories that feature opal. Australian opals discovered during the late 1800's found little favour with European markets but their commercial value increased in the 1900's and in 1932 Australia took over as the major producer of opals in the world and remains the largest producer to this day. Opal is found around the world (Brazil, Mexico, Honduras and the western US) however Australia produces 95% of the world's precious opal and it is our official national gemstone. Opal was first mined commercially at Listowel Downs in Queensland in 1875 and later at White Cliffs in NSW. Today, Coober Pedy (SA) is the main producer of white opal, though in recent years this field has expanded and all types of opals are found. Other centres in SA include Andamooka and Mintabe. Lightning Ridge (NSW) is renowned for black opal and formerly White Cliffs was a large producer of high quality opal. Boulder opals (opals in concretionary ironstone) are mined in Queensland from numerous localities in a zone extending from the Eulo and Cunnamulla district in the south and northwest for a distance of over 700 km to Kynuna in the north. The towns of Quilpie, Yowah and Winton are the main opal mining and wholesale centres. Opals are considered gemstones and have been used in jewellery for thousands of years.Throughout much of history, opals were actually believed to be good luck. The Romans thought that opals were one of the luckiest gemstones and a symbol of hope. In the Middle Ages, opals were believed to be bestowed with all the positive properties of coloured gemstones due to its rainbow-like play of colour. Finally, there is a superstition that you should not wear an opal unless it is your birthstone otherwise misfortune will befall you. This, of course, is far-fetched, but the notion could have been promoted in the late 19th and early 20th Centuries by diamond traders who were trying to increase sales of diamonds and deter people from buying opals. Possibly related to this is the thought that you should set opal jewellery with diamonds as their powers of good fortune will override any negativity held by the opal. The great majority of opal does not show play of colour and is called common opal or potch however this is not the case with a precious opal. Opal is a precious gemstone, like rubies, emeralds or diamonds. Opal is rare, and it is expensive to prospect and mine for.Silica is one of the most common minerals on the planet, but precious opal is very rare – far more rare than diamonds. Precious opal is rare because the natural processes that create it rarely occur.Most (at least 95%) of the opal found by miners is common opal without gem colour. In Australia we call it potch. It can be white, grey, black or amber coloured. Even when a miner finds gem-coloured opal, most of it can’t be cut into gemstones because it’s too thin, or sandy. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.It is not known where this opal originated, except that it is probably from Victoria, as it has been recorded from many localities in the State. Common Opal is formed from silica-rich water circulating through rocks near the Earth’s surface. It consists of minute spheres of silica arranged in different ways. In common opal, the spheres are of different sizes and randomly arranged, unlike in precious opal where the spheres are of similar size and uniformly arranged in three dimensions. These differences account for common opal generally being translucent to opaque and without the play of colours, or opalescence, displayed by precious opal. Common opal is found in many localities and different geological environments throughout Australia and the world. Precious opal requires special conditions to form and is much less common. Australia produces most to the world’s precious opal. burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, precious opal, opal, brazil, mexico, honduras, queensland, coober pedy, gemstones, jewellery, play-of-colour, light blue

Basalt is a common igneous rock that composes most of the Earth's surface and can be found on the Moon and other rocky planets of the Solar System. It is generally composed minerals such as calcic plagioclase, clinopyroxene and iron ore which form grains that are indistinguishable to the naked eye. It can be dark grey or black in colouring and sometimes may contain holes left by gas bubbles. Most of the Earth's basalt was produced in environments such as oceanic divergent boundaries, oceanic hotspots, and mantle plumes and hotspots beneath continents. Basalt is commonly used in construction where it is crushed and used for multiple purposes such as concrete aggregate, road base, or railroad ballast. Thin slabs of basalt can also be cut and used for floor tiles, stone monuments, and building veneer. This particular specimen was excavated from Talbot in Victoria, which was a small gold mining town established in 1852. As basalt is a common rock, it is not specific to Talbot. However, this specimen can be assumed to be of the Cainozoic age due to previous geomorphic surveys of the area. This particular type of Basalt was used mainly for roads due to the durability of the rock.Basalt holds significance due to the continued use of the rock from historic until present times. The rock has been utilised for many types of construction and is still used for the same purposes today. Basalt also has significance to the Earth and other rocky planets of the Solar System as it makes up most of the planet's surface. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A smaller than hand sized rock specimen which is dark grey in colour with small holes and white deposits across its surface.Geological survey / [illegible] /burke museum, beechworth, geological specimen, geology, basalt, basalt specemin, indigo shire, talbot, cainozoic, igneous rock

This particular specimen was recovered from two hundred feet down in the Golden Mile in Kalgoorlie, Western Australia. The Golden Mile, named after the estimated sixty million ounces of gold worth around one hundred billion dollars, was the birthplace of the largest gold rush in Australia almost one hundred and thirty years ago when William Brookman and Samuel Pearce leased the Great Boulder mine. The Golden Mile is also the home of the Super Pit, Australia's most well-known mine.The majority of gold deposits will form as a native metal, however, on occasion, it can form a compound with another element, in this case, sulphur. Therefore, this specimen is a rare example of gold naturally forming into a compound mineral with sulphur. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A small gold-sulphide ore mineral specimen in shades of silver and grey with flecks of gold. Precious metals are often found in Sulphide Ores, as sulphides usually bind to these metals. They are also extremely symmetrical in crystaline form. Gold-Sulphide Ore occurs when gold forms a natural compound with other elements. In this form, gold can be present in one of two ways. It can be fully immersed in the sulphide, or a portion may be partially free. This specimen has minimal gold visible, with only a few flecks being partially visible.burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, gold-sulphide ore

This specimen originated from Mount Lyell on the west coast of Tasmania, where a large group of open cut and underground copper-silver-gold mines began operating in 1883. Between 1893-1994, the Mt Lyell Mining and Railway Company were responsible for operations. The Mt Lyell copper-gold mines produce some excellent crystallised specimens of chalcopyrite and other minerals. The deposits are generally considered to be of Cambrian volcanic origin, but there are indications of Devonian granitic influence on the ores, plus local remobilisation during Devonian deformation. Over 120 million tonnes of ore was produced from several workings, including the main Prince Lyell mine and the North Lyell mine, which was also of great importance. The Mount Lyell mines have a long history of human and environmental disasters, including the 1912 North Lyell fire that killed 42 miners, and two separate incidents in 2013 in which three people lost their lives. The environmental impacts from this complex of mines are extensive, with waste tailings and heavy metal contamination flowing directly into the King and Queen River catchments. In 1954, the eminent Australian historian, Geoffrey Blainey, published 'The Peaks of Lyell' which delves into the history of the 1912 North Mount Lyell Disaster.Chalcopyrite does not contain the most copper in its structure relative to other minerals, but it is the most important copper ore since it can be found in many localities and occurs in a variety of ore types. The brassy-yellow colours in Chalcopyrite mean it is often confused with pyrites and gold, leading to use of the term, "fool's gold." Chalcopyrite has been the primary ore of copper since smelting began five thousand years ago. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.This hand sized solid mineral specimen has shades of brass-yellow with spots of iridescent green-black tarnish. Chalcopyrite is a copper iron sulphide mineral and a major ore of copper common in sulphide veins and disseminated in igneous rocks. Chalcopyrite has a hardness of 3.5-4 on the Mohs Scale. It is a member of the tetragonal crystal system and has metallic lustre and opaque transparency.burke museum, beechworth, indigo shire, beechworth museum, geology, geological specimen, chalcopyrite, copper pyrites, copper mining, tasmanian geology, mount lyell, mount lyell mines, fools gold, mohs scale, crystals, minerals, historical geological collection, victorian geological survey, a.r.c selwyn, gold rush, van diemans land

This specimen is from Barefoot Hills, Victoria. Sandstones are economically important as major reservoirs for both petroleum and water, as building materials, and as valuable sources of metallic ores. Most significantly, they are the single most useful sedimentary rock type for deciphering Earth history. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A sedimentary rock composed mostly of quartz sand. Sandstone is the second most common sedimentary rock after shale. Sandstones consist of sand-sized grains principally quartz, feldspar and rock fragments. The two major classes of sandstone are arenite and wacke. the colour of sandstone varies from grey, yellow, red and white reflecting the variation in mineral content and cement and is gritty to touch (like sandpaper).Geological survey / R.... S 61 / Loc Bareboot Hills / Sheet / 24SE / 94 /burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, sandstone, yellow sandstone, victoria, barefoot hills

This specimen was recovered from Philip Island in Victoria. Chalcedony is composed of Quartz and Silicon Dioxide represented as SIO2. It has and is still used as a gemstone for thousands of years. This is an excellent specimen Chalcedony that shows its aesthetic properties. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. Uniquely shaped piece of Chalcedony with opening in the centerburke museum, beechworth, geological, geological specimen

Gold usually is found as a native metal, but it also forms minerals with tellurium, sulphur, or selenium. The gold-bearing minerals that contain tellurium are called tellurides. Kalgoorlie, Western Australia contains greater than 1500 tonnes of gold.Seventy to seventy-five percent of the deposit occurs as native gold, but a further twenty percent appears as tellurides. What remains is in the form of 'invisible' gold. Extracting gold from telluride minerals, such as calaverite, which contains around forty-two percent gold, has produced approximately three hundred tonnes of gold. Prior to 1896, rocks containing tellurides were not recognised as rich gold ores, and were discarded.This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A hand-sized silvery to pyrite-yellow striated mineral containing tellurium and goldburke museum, beechworth, beechworth museum, geological, geological specimen, mineralogy, telluride, tellurite, gold-bearing, kalgoorlie, tellurium

This specimen is from Broken Hill, NSW. Galena is a natural mineral form of lead sulphide and is often found associated with sphalerite, calcite, and fluorite. Galena is an important lead ore mineral, and, in some regions, it is also an important mineral associated with silver ore. Sphalerite is a sulphide mineral that is the main ore of zinc. Rhodonite is an uncommon mineral once used as an ore of manganese in India, however today the scarcity and fragility of the crystals mean it is primarily used as lapidary materials or mineral specimens. In 1883, Charles Rasp who was a boundary rider at the time, discovered what he thought were deposits of tin but were in fact samples of silver and lead. He and six others went on to set up the first mining company in Broken Hill (BHP). The ore body became the largest and richest of its kind in the world mining ore worth more than 42,000 pounds in its first year. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study. Galena contains lead and silver, Sphalerite contains zinc. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A hand-sized piece of Sphalerite and Galena with Rhodonite crystalsburke museum, beechworth, geological, geological specimen, galena, rhodonite, sphalerite, silver ore, manganese, lead sulphide, lead ore, zinc ore, lapidary, mineral specimen, broken hill, nsw

This specimen was found in Cape Patterson, Vic. Cape Paterson is a cape and seaside village located near the town of Wonthaggi, 132 kilometres southeast of Melbourne, in the Bass Coast Shire of Gippsland, Victoria, Australia. These dark, fossiliferous Mudstones were deposited in slow-moving water associated with sedimentary basins & continental shelves. They are rich in carbon which makes them almost black. This is typical of an anoxic, reducing environment such as deep water or stagnant conditions where carbon-rich material would remain unoxidised during subsequent deposition & diagenesis. it has an imprint of a leaf in the rock itself, displaying the fossil of the plant. This specimen is unique due to the leaf impression within the stone itself. Imprint fossils are formed from an organism moving in some way, leaving behind a trace or track. These tracks are preserved when the clay/silt dries slowly and is covered by other sediment. Plants can also leave imprint fossils when they are covered by sediment. The leaf tissue degrades, leaving an imprint of where the leaf once was. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.These dark, fossiliferous Mudstones were deposited in slow moving water associated with sedimentary basins & continental shelves. They are rich in carbon which makes them almost black. This is typical of an anoxic, reducing environment such as deep water or stagnant conditions where carbon rich material would remain unoxidised during subsequent deposition & diagenesis. FOSSILIFEROUS MUDSTONE / Locality: Cape Patterson, Victoria | Descriptive catalogue / Pg 27 No 95 / "Grey Clay, / Cape Paterson with leaf impressions' / 15/4/21 C. William /mudstone, cape patterson, leaf imprint, fossilised leaf, fossiliferous mudstone

This specimen was found in Harcourt, Victoria. Harcourt is a small historic gold rush town located in a valley at the foot of Mount Alexander (741 m) in the Central Highlands of Victoria. In recent times the goldrush origins of the town have been replaced by a district known for apples, cider and wine. The Traditional owners of Harcourt are The Dja Dja Wurrung people. Granodiorite is a coarse-grained intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. Granodiorite has greater than 20% quartz by volume, and between 65% and 90% of the feldspar is plagioclase. This piece is of significance due to its provenance in Harcourt, Vic. Granodiorite is commonly produced in volcanic arcs, and in mountain buildings where it emplaces as large batholiths in mountain roots. Granodiorite is the plutonic equivalent of dacite. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.Granodiorite is a coarse-grained intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. According to the QAPF diagram, granodiorite has a greater than 20% quartz by volume, and between 65% and 90% of the feldspar is plagioclase.GRANDIORITE. / Locality: / Harcourt, Victoria / Other label: Geological survey / R S / Loc Harcourt quarries [?] Alexander / 1/4 Sheet. | 4 | Granite /granodiorite, granite, burke museum, harcourt, coarse-grained, igneous, plagioclase feldspar, orthoclase feldspar, quartz, mount alexander, the dja dja wurrung people, the traditional owners, central highlands of victoria, gold rush

This particular specimen was found in the Moorabool Slate quarries in Victoria. The Moorabool Slate quarries was established in the 1860’s by a company of Welshmen with a crew of six who purchased land by the riverside to mine for slate. Under the promise of adding to existing recourses the crew mined the slate which was used for paving and roofing. Slate is a fine-grained, low-grade metamorphic rock that is formed by the transformation of mudstone, shale or sometimes volcanic ash under low pressure and temperatures. It dark colour is due to carbonaceous material or to finely divided iron sulphide. It is believed that Evan Rowlands and Theophilus Williams of Ballarat were the first to discover the slate veins. Slate is a one of the most common natural stones in general use. Being used as paving, flooring, roofing and more. However, its history of being mined in Australia is not common as it is considered that the best places to mine slate is Spain and parts of the United Kingdom. This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A somewhat rectangular foliated metamorphic rock composed of quartz, sericite and minerals from the chlorite group that make up the compounds of slate. The rock is dark grey almost black.Geological survey / R S / Loc Moorabool /Slate quarries / 1/4 sheet | 78 | Roofing Slate /burke museum, beechworth, geological, slate, metamorphic, slate (metamorphic), geological specimen, slate specimen, indigo shire

This specimen was recovered from Sedgwick, VIC. Spotted slate is a fine-grained porphyroblastic metamorphic rock with a number of compounds including muscovite, quartz, graphite with cordierite poikiloblasts and more. The cordierite poikiloblasts are rounded crystals that size up to 2.5 mm. the growth of these crystals is in response to metamorphism of low to medium intensity. The town Sedgwick was named after British geologist Adam Sedgwick This specimen is part of a larger collection of geological and mineral specimens collected from around Australia (and some parts of the world) and donated to the Burke Museum between 1868-1880. A large percentage of these specimens were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush) to study and map the geology of Victoria. Collecting geological specimens was an important part of mapping and understanding the scientific makeup of the earth. Many of these specimens were sent to research and collecting organisations across Australia, including the Burke Museum, to educate and encourage further study.A solid rectangular hand-sized spotted slate specimen in a shade of light grey with darker flecks throughout Spotted Slate / Locality: Sedgwick Victoria | This is an early specimen / from the Quarter sheet / map. See sample 62 / page 18. Described as 'Spotted Slate' but these / days we would call it spotted hornfels / C. William 15/4/21 slate, spotted slate, victoria, beechworth, burke museum, geological specimen, mineralogy, sedgwick, sedgwick victoria, spotted slate specimen