Dendrites are deposits of black minerals, typically manganese oxides that precipitated from water seeping through fractures in fine-grain rocks like a sandstone or limestone. Dendrites are much less regular than plant fossils and lacks vein structures. The manganese cryztallizes through the process called 'supercooling'. Some samples of dendrites occur in volcanic rocks in the Lilydale district, east of Melbourne. Sandstones are made of tiny sand grains that may have been deposited in the sea and later formed together. Most sandstones are made of quartz which are chemically-resistant minerals. This particular specimen was donated by Alfred Selwyn in 1868 as part of the Geological Survey of Victoria. It is connected to the original 1875 catalogue on Geological Specimen with number 189 'Quartz Crystals_Quartz Crystals (two are polished)'Dendrites on sandstones This specimen is an important contribution to the geological history of Victoria, as well as its links to the 1868 Geological Survey of Victoria. This specimen is part of larger collection of significant geological specimens in the Burke Museum that was collected from around the world between 1868-1880. A large percentage of these specimens were collection as part of the Geological Survey of Victoria 1852-1974. The Geological Survey of Victoria was an organisation founded in response to the Victorian gold rush to explore the geological and mineral resources and to record a detailed map of the state. It was headed by British geologist, Alfred Richard Cecil Selwyn (1824-1902), who was responsible for issuing over 60 geological maps during his 17 years as director. These maps were all hand-drawn and coloured and became the benchmark for accuracy for geological mapping. 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 slice of light brown sandstone with dendrites formed from crystallized manganese oxide.Existing label: Not sure what / 'Slica dondrites' / means. / Sample is sandstone and original label / identifies it as from / the Grampians near Stawell. / C. Willman / 15/4/21 Other label: [illegible] / stone [ illegible] / from Grampians Stawell / 1894 /geological specimen, geology, geology collection, burke museum, beechworth, dendrites, sandstones, quartz, lilydale district, geological survey of victoria, grampians, victoria rocks, minerals, rocks, manganese oxides, alfred selwyn

Monument Marking where the First Quartz Gold was found in stawell similar to 6939-1monuments, quartz gold

Hand written book which starts with minutes from the Kitty's Quartz Mining Company.old colonists association ballarat, ships, immigration, kittys quartz mining company, h. feild, g. whykes, d.g. dalzell, b. betts, john laurie, david gilchrist dalzell

Handwritten page and carbon copy of notes on the Victoria Quartz Mine and Rae's Open Cut.document, gold, victoria quartz, victoria quartz, notes on the victoria quartz & rae's open cut, victoria reef company, wm rae, eastern victoria reef

Copy of a black and white photo of the Victoria Quartz Mine showing the poppet head, chimney and two buildings. Printed underneath is: Victoria Quartz. The head frame here is the third erected. It was needed to cope with increased haulage as the shaft went deeper.bendigo, history, long gully history group, the long gully history group - victoria quartz

Geological map of the Parish of Cardigan on a cadastral base showing quartz reefs, shafts, alluvial deposits.cardigan, winter's creek, ballarat cattle yards railway, prince of wales park, ballarat, friendly societies reserve, ballarat industrial school reserve, green hill, bunker's hill, sago hill, diamond drill bores, cardigan propriety, half way house, ti tree creek, albion consols, prince imperial, winter's freehold company

The camera was owned by the donor and her father. They were bushwalkers and took many photos on their walks.Minolta Camera AF-DL Quartz date. Automatic date camera. Made in Japan. No. 1523631.photography, cameras

Copied photograph of Garibaldi Quartz Mine. Original believed to have been taken about 1894.On back of photo: "1894"mining, gold mining, garibaldi 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

8311.1 - Small quartz-rich conglomerate, ovoid in shape, white on most surfaces, brown on weathered surfaces.

Sepia toned photograph. Photograph No. 7: Excavation of Quartz Reef near ironbark hill (two copies)N.J. Cairetopic, mining, battery

Quartz sample, small gold pieces embedded. Sample donated from estate of George Harris, Axedalegold, mining, harris collection axedale

A number of printed, foolscap examinations for the Ballarat School of Mines January Examinations in 1874 for Captain of Shift - Quartz Mines. ballarat school of mines, captains of shift, examination, alluvial mining

black and white image mounted on yellow board, part of a joined series of three, image shows large battery for crushing quartz, inside building with iron roof. Written on bottom of image 'battery for crushing quartz' Identified by James Lerk 24.3.2000 as being the 'Middle Garden Gully United'business, mining, garden gully united, middle garden gully united, battery, mining, mine, bendigo

Diggers & Mining. Diggers and miners. Quartz gold mine, Clunes, c. 1861- - - and in the quartz reefs. Slide shows that mining is done on a much grander scale than a pan by the river of shallow mines. It could now be a large industry for its times. Markings: 29 994:LIF I. Used as a teaching aid.hanimounteducation, tertiary, goldfields

This nugget was found on the Beechworth Goldfield in the late 1800's by Mr Fred McIntosh (Alan & Edward Dunlop's Uncle (father James' brother-in-law) by marriage, husband of Elizabeth (Bessie) Dunlop), who had made it into a tie pin and presented it to the Dunlop family. A small nugget of gold made into a tie pin. The nugget is attached to a small amount of milky quartz stone and mounted on a tie pin.gold, nugget, beechworth, burke museum, tie pin, pin, gold rush, goldfield

8309.1 - Small piece of mostly likely diorite, stone is half white plagioclase and quartz, half dark fine-grained minerals.