When the ground depresses down at the point of a volcanic vent after a volcano’s magma chamber has been emptied it is known as a caldera, and not a volcano crater. (https://www.universetoday.com/31143/volcano-crater/, accessed 04 March 2019) A caldera is a volcanic feature formed by the collapse of a volcano into itself, making it a large, special form of volcanic crater. A caldera collapse is usually triggered by the emptying of the magma chamber beneath the volcano, as the result of a large volcanic eruption.(https://www.sciencedaily.com/terms/caldera.htm)A volcanic vent, or depression on one side of Mount Franklin. mount franklin, volcano, volcanic vent, lalgambook

Tower Hill is a volcanic formation believed to have erupted about 32,000 years ago. Its formation is known as a "nested maar" and it is the largest example of its type in Victoria. During formation, molten lava pushed its way up through the Earth’s crust and encountered a layer of water-bearing rock. Violent explosions followed creating a shallow crater which later filled with water to form the lake. Further eruptions occurred in the centre of this crater, creating the islands and cone shaped hills. In 1892 Tower Hill became Victoria’s first National Park. In 1961, Tower Hill became a State Game Reserve under the then Fisheries and Wildlife Department and a major re-vegetation program began. (https://www.towerhill.org.au/index.php/about-reserve/history, accessed 23 December 2019)Colour photographs of a lake in a volcanic crater at Tower Hill, Victoria. volcano, crater, lake, tower hill

Smeaton Hill was the name of the property first settled by squatter Captain John Hepburn and Elizabeth Hepburn.Five landscape photographs of the seven volcanic hills around Smeaton.smeaton, kooroocheang, john hepburn, john hepburn, elizabeth hepburn, volcano, volcanic

Kenneth JACK AM MBE RWS, (5 October 1924 – 10 June 2006) Australian watercolour artist Kenneth Jack who specialised in painting the images of an almost forgotten outback life; old mine workings, abandoned ghost towns, decaying farm buildings. He became a professional painter at the age of 39 after giving up his job as senior instructor at the Caulfield Institute of Technology. In 1977 he was elected to The Royal Watercolour Society and in 1982 was awarded the MBE, and the Order of Australia (AM) followed in 1987. Framed three block lino print showing the volcanic plains of Victoria around Stony Rises. It is Number 6 in the Volcanic Plains of Victoria series. Donated through the Australian Gifts Programme by Katherine Littlewood.31/40artwork, artist, kenneth jack, printmaking, volcano, mt porndon, mount porndon, linocuts

Robin Boyd was appointed Exhibits Architect for the Australian Pavilion at Expo ‘70 in Osaka and travelled to Osaka several times in 1969-1970. Boyd designed the innovative Space Tube, which had over 25 exhibition boxes, projecting from it. Amongst the topics covered were Australian scientific innovation (including brain research, immunology, Antarctic research, Snowy Mountains Hydro-Electric Power Scheme, rainmaking, and the night sky), Australian sport, house interiors, car manufacturing, Australian music and art, and Japanese-Australian relations.Colour slide in a mount. Volcanic activity, Expo '70, Osaka, JapanExpo'70 / Volcanic Activity / 30 (Handwritten)expo 70, osaka, robin boyd, slide

This specimen was recovered from Creswick in Victoria. Basalt is dark in colour, often black and has a fine grain. It is composed of plagioclase and pyroxene minerals and an igneous rock. 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 cylindrical fine-grained piece of igneous rockburke museum, geological survey of victoria, geological specimen, geology

tower hill, volcano, volcanic ash, volcanic ash layers, geology, koroit

Framed six colour serigraph showing a volcano surrounded by water. Donated through the Australian Gifts Programme by Katherine Littlewood. Signed lrs "Kenneth Jack" Edition: 25/30kenneth jack, printmaking, volcano

Framed four plate lithograph depicitng Nt Eccles and Crater Lake on the Victorian cvolcanic plains. Donated through the Australian Gifts Programme by Katherine Littlewood.Edition 23/42kenneth jack, printmaking, mt eccles, volcano, lithograph

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

15cm x 10cm coloured photograph of the cutting at 91 Sydney Street, Melbourne Street at the top of the cutting which exposed the volcanic rock. Now is the site of the car wash and KFC.Written on the back: Exposed volcanic rock 91 Sydney St Kilmoreconstruction

"This sculpture was inspired by the figures carved from the hillsides of the chalk downs in Britain. I wanted to produce a work that would become part of the landscape and was originally derived from the landscape. It is a white-faced heron which is a native water bird commonly found along the Merri Creek. The bird is looking upstream to the source of the creek and the other artworks along the creek."Made of scoria (a red-brown volcanic stone) laid in trenches, 'Earthwork Heron' was commissioned by the Merri Creek Management Committee as part of the Merri Creek Arts Plan and was donated to the City of Yarra in August 1997.Contemporary, LandartOutline of a Heron bird imprinted on a rolling hill in the landscape with volcanic stone (scoria). Accompanying plaque reads: 'This sculpture was inspired by the figures in the British Chalk Hills. I wanted Earthwork Heron to be derived from and become part of the landscape. The white feathered Heron a common native water bird is looking upstream to the creek's source." wildlife, landscape, ephemeral, landart, environment, site-specific

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

Tower Hill is a volcanic formation believed to have erupted about 32,000 years ago. Its formation is known as a "nested maar" and it is the largest example of its type in Victoria. During formation, molten lava pushed its way up through the Earth’s crust and encountered a layer of water-bearing rock. Violent explosions followed creating a shallow crater which later filled with water to form the lake. Further eruptions occurred in the centre of this crater, creating the islands and cone shaped hills. In 1892 Tower Hill became Victoria’s first National Park. In 1961, Tower Hill became a State Game Reserve under the then Fisheries and Wildlife Department and a major re-vegetation program began. (https://www.towerhill.org.au/index.php/about-reserve/history, accessed 23 December 2019)A number of photographs taken at Tower Hill, including the lakes, volcanic ash layer, and koala.tower hill, ash layer, volcano

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

15cm x 10cm coloured photograph of the cutting at 91 Sydney Street, Melbourne Street at the top of the cutting which exposed the volcanic rock. Now is the site of the car wash and KFC.written on the back of .1: cutting @ 91 Sydney St Kilmore Melbourne St 2 top of cutting late July 2016 Written on the back .2: Exposed volcanic rock look south west 91 Sydney St Kilmore late July 2016construction

This specimen was recovered from Ceres West of Geelong, Victoria. Greenstone is the name for any metamorphosed basic igneous rock (in the case of this specimen, Gabbro) that gains its greenish colour to the presence of the minerals chlorite, actinolite, or epidote, hence the term 'green' and 'stone'. Greenstone is often formed through metamorphsis along a convergent plate boundary. In the rock cycle (the series of processes that creates the various types of rocks) there are identified three different types of rocks, which are the sedimentary, the igneous and the metamorphic. Metamorphic rocks started out as sedimentary, igneous or earlier metamorphic rocks but changed from their original condition under the effect of high heat, high pressure or hot, mineral-rich fluid. However, if pressure or heat is too high, then the rock will melt, resulting in the formation of an igneous rock. The name used to describe these types of rocks reflects this specific inherent trait of change, since the word “metamorphic” derives from the Greek word “metamorphosis”, meaning “change of form or structure”. Metamorphic rocks form in the Earth`s crust but can be also found on the surface, due to elevation of the Earth`s surface. They are divided into two categories: the foliated metamorphic and the non-foliated metamorphic rocks. Gabbro is a highly useful mineral that is often polished to create cemetery markers and kitchen benches. It is notable for its qualities of durability, being able to withstand extreme elements and wear. Whilst not rare, Gabbro is of great utility and has been highly desirable for its qualities. 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.Greenstone is a solid hand-sized metamorphic mineral of a green colour. Greenstone is the name for any metamorphosed basic igneous rock (in the case of this specimen, Gabbro) that gains its greenish colour to the presence of the minerals chlorite, actinolite, or epidote, hence the term 'green' and 'stone'. Gabbro is a medium to coarse grained rocks that consist primarily of plagioclase feldspar and pyroxene. Greenstone is often formed through metamorphsis along a convergent plate boundary. Gabbro forms due to cooling and crystallization of magma underneath Earth's surface. Greenstone/Gabbro/from Ceres west/of Geelong. Has old Geological Survey label/and probably collected by/Richard Daintree in 1861/C.Willam 15/4/21/ Other label: 62 /greenstone, metamorphosed, igneous rock, gabbro, chlorite, actinolite, epidote, metamorphsis, rock cycle, various types of rocks, sedimentary, high heat, high pressure, mineral-rich fluid, metamorphosis, foliated metamorphic, non-foliated metamorphic, convergent plate boundary, greenish colour, minerals

Neville Mirvane BUNNING (1902-1990) During World War Two he served with the RAAF. He was an Art Teacher at the Ballarat School of Mines from 05 February 1946 to 22 September 1964. Neville Bunning formed the Ballarat Artist's Society (later the Ballarat Society of Artists), a group that sponsored art and which invited modernist artists to speak to students and to the public of Ballarat. He also wrote a weekly column in the Ballarat Courier. Bunning produced a bust of Australian Prime Minister, The Right Honourable J.A. Lyons from Tasmania, who died in office. Bunning died in Subiaco, Western Australia on 29 April 1990. This item is part of the Federation University Art Collection. The Art Collection features over 1000 works and was listed as a 'Ballarat Treasure' in 2007.Small framed painting of a volcanic landscape.noneart, artwork, bunning, neville bunning, available

According to the 1912 Department of Mines Bulletin of the Geological Survey of Victoria, basalt covers a considerable portion of the Macedon area including Mount Macedon. Basalt is the most common form of rock underlying the earth's surface and is found in three kinds of rock forming environments: ocean divergent boundaries, oceanic hotspots, and mantle plumes and hotspots beneath continents.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 mass, geological specimen in shades of grey and white. Hyalite is a colourless variety of opal. It occurs as globular and botryoidal masses and irregular crusts in volcanic and pegmatite environments where the silica deposits from the gas phase. Basalt is dark in colour, fine-grained igneous rock composed of plagioclase and pyroxene minerals. It is commonly formed as an extrusive rock, such as lava flow. It is one of the most common forms of rock underlying the earth's surface.burke museum, geological specimen, department of mines, geological survey of victoria, basalt, mount macedon, beechworth

Colour photographs of the volcanic ash layers at Tower Hill.tower hill, volcanic ash, ash layers

A volcanic hill as seen from Queen Street, Smeaton, Victoriasmeaton, volcano, volcanic

An extinct volcanic mountain known as Mount Franklin from the Franklinford Cemetery. . mount franklin, volcano, franklinford, franklinford cemetery, lalgambook

An extinct volcanic mountain known as Mount Franklin from Smeaton, Victoriamount franklin, volcano, smeaton, lalgambook

Olivine is mostly found on the Earth's surface in igneous rocks that are dark-coloured. It is common at divergent plate boundaries and at warm spots, such as volcanic areas. It crystalises and forms during the cooling of magma. Olivine is used in refractory sand, bricks, and gemstones. Olivine has been found on a number of meteorites, which might have originated from large asteroids or the mantle of a now-destroyed planet. This olivine crystal is thought to originate from Mount Noorat, with speculation that it could have originated from Mount Shadwell. Mount Noorat is a dormant volcano cone located in the Newer Volcanics Province of Victoria. Mount Noorat belongs to the Kirrae Wuurong people, who used the Mount as a place for meetings and gatherings prior to European settlement. Contact was first made between European settlers and the Indigenous people in 1841. The Mount has mostly been used for cattle and sheep grazing. Mount Shadwell is a well-known source of olivine and is the highest of a gathering of volcanic cones. The New Volcanic Province is located in South East Australia and covers 15000 square kilometres. It contains 400 explosive vents and small shield volcanoes. The last eruption is thought to have occurred 5000 years ago at Mount Gambier and Mount Schank. This olivine crystal has been identified as a volcanic bomb, which is a molten rock which was pushed out and ejected into the air when a volcano reupts. A rock needs to be larger than 65 mm in diameter to be classified as a volcanic bomb. This olivine volcanic bomb and its locality is historically and socially significant. The olivine was found in the Newer Volcanic Province, an area which contains over 400 dormant volcanoes. This olivine is one part of a volcanic bomb, which would have ejected when magma erupted out of a volcano. 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 iron-magnesium silicate mineral with shades of green and brownburke museum, beechworth, geological, geological specimen, olivine, igneous rock, volcanic, gemstones, volcanic bomb, meteorites, asteroids, plantes, mount noorat, mount shadwell, indigenous, kirrae wuurong people, newer volcanics province, victoria, european settlement, eruption

(.1) Stone axe blank of Western Australian origin, found at Hill View Station. The tertiary rock is quartzite, a metamorphosed igneous rock, and has a red, or iron oxide colour. (.2) An oval grinding stone of Western Australian origin, found at Hill View Station. The rock is metamorphosed igneous rock, potentially greenstone. One surface has evidence of a rough depression, possibly made in preparation for sharpening of a tool or similar.aboriginal, stone, tool, archaeology, stone tools, western australia, hill view station, quartzite, grinding stone, grind stone, greenstone, stone axe, stone axe blank, blank

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

The Convent Gallery was formerly Holy Cross Convent, and incorporates the Gold Commissioners house. An extinct volcanic mountain is seen in the distance. The slate roof of the former Holy Cross Convent in Daylesford is in the foreground. holy cross convent, presentation convent, convent gallery daylesford, slate roof, mount franklin, volcano, lalgambook

The planes of the orebody at South Prince Lyell, including felsic volcanics, silicified One, shale lenses and owen conglomerate.mount lyell, tasmania, southern prince lyell, orebody, volcanics, hale lenses, owen conglomerate, magnetite alteration