From the Ballarat School of Mines.Azurite and Malachite Specimens (and iron), Moonta, South Australiageology, rock, azurite, malachite, moonta

This specimen is a copper-carbonate malachite mineral. It is often found as crystalline aggregates or crusts, which have a banded agate-like appearance while also commonly found as botryoidal clusters of radiating crystals. Malachite is often bright green in colour, with dark green and blackish blooms or stripes/bands throughout the mineral. This particular specimen was recovered from the Burra Burra Copper Mine located Burra, South Australia. By the 1860's, South Australia was known as the "Copper Kingdom" due to its large amount of copper mines and huge success in the copper mining industry. Burra Burra was no exception to this phenomena, as this mining company was greatly famous and successful, being nicknamed the "Monster Mine". It was first established in 1848 and was the largest metal mine in Australia up until 1860. This specimen is significant as it highlights the historic use and value of malachite and the rarity of the mineral. Malachite is a rare gemstone which has been used in various ways historically. It has been cut and sculpted into beads for jewellery use as its rich colour and distinct yet unique patterns have made it a well sought after gemstone. Its' continued use over time only heightens the value and significance of this mineral.A hand-sized solid copper-carbonate hydroxide mineral specimen in shades of blue, green and copper tones throughout.MALACHITE / (Copper carbonite) / Locality: Burra, South Aust. | Malachite / Burra Burra / South Australia / (good specimen) / needs a wash / BBburke museum, burke museum collection, beechworth museum, beechworth, geological specimen, geological, mineral, mineraology, copper carbonate, malachite, burra burra mine, copper mining

Malachite is a copper carbonate hydroxide mineral. It has a chemical composition of Cu2(CO3)(OH)2. It often forms within limestone where a subsurface chemical environment favourable for the formation of carbonate minerals can occur. It is a substance that can be found in many different parts of the world including: Australia, USA, Russia and the Democratic Republic of Congo. Malachite has historically been used to produce copper, with mining of the mineral dating back over a period of four thousand years. Due to its beautiful green colourations, it is also commonly used for aesthetic purposes such as in the production of sculptures and jewellery. This particular specimen was collected from the town of Burra, South Australia as part of a geological survey undertaken during the nineteenth century. The locality (located on Ngadjuri Country) has a long history of mining, particularly in copper mining, as the area is rich in copper deposits. The first significant discovery of this was made in Burra (Burra Burra Mine) in 1845 and, at the time, the mine was the largest and richest of its kind in the world, producing nearly five percent of the total world copper output. This specimen is significant as it is considered to be a rare gemstone, as many of the original deposits for the stones are significantly depleted, leaving behind very few sources. 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 copper carbonate hydroxide mineral with patterns of green colourations Existing Label: MALACHITE / Locality: Burra / S. Aust. Other Label: Confirmed / as Malachite / C. Willman / 15/4/1 / + Bill Birch burke museum, beechworth, geological, geological specimen, malachite, gemstone, green gemstone, burra, burra burra mine, burra south australia, carbonate mineral, copper, copper mining, copper mining burra, carbonate hydroxide mineral, copper carbonate, malachite mining, malachite burra, monster mine

From the Ballarat School of Mines.Geological Specimenrocks, geology, azurite, malachite, burra

Malachite is a water soluble, crystalline, triphenyl methylene chloride salt. It has a close relationship to copper because it is common for Malachite and copper to come from the same ore. Malachite often has shades of green, making it also known as Malachite Green. As a result of it's colour, it is known for being a dye and has been used in the dye industry, the textile industry and in medical fields. Cobar in New South Wales is well known for it's mining. This is because of the number of important deposits present in the area and include three important mining belts where most of the materials are found. These are the 'Cobar belt', the 'Canbelego belt' and the 'Girilambone belt'. The 'Cobar belt' runs underneath the main town. Copper was first discovered in Cobar in 1869 and since then, many deposits of other materials have been found, including Malachite.This specimen is significant because it comes from Cobar, NSW and represents the many deposits of materials found there. Cobar has a long history of mining and is a source of Australia's copper minerals. Malachite is often found in copper deposits meaning that it is representative of Cobar's copper production. Malachite is known for it's vivid green colour and as a result, has many uses, such as meaning used as a dye. This makes it a valuable material and highly significant. 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 mineral with shades of brown , white and light green throughout.geological specimen, geology, geology collection, burke museum, beechworth, malachite, copper, water soluble, cobar, cobar mines, cobar mining, cobar nsw, nsw, new south wales, mining belts, ore, copper ore, malachite green, dye, green, dye industry, textile industry, desposits, canbelego, girilambone, alfred selwyn

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

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. 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. Although there is no indication available of the locality from which the specimen was sourced, it is likely that the specimen was collected either in South Australia in the vicinity of the Burra Burra mines or in Victoria as part of programs of geological surveying undertaken in the Nineteenth and Twentieth centuries. 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 quartz pebbles in red conglomorate matrix presenting shades of cream, brown and green.Existing label: Malachite / (green) in / conglomerate / (white quartz / pebbles / in red matrix /geological specimen, geology, geology collection, burke museum, beechworth, geological, indigo shire, malachite, malachite specimen, australian mines, mines, geological survey, conglomorate, matrix

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

Fifty-three mineral samples collected by Amy Huxtable. Samples in two plastic partitioned boxes. Samples were originally housed in poor conditions in matchbox inserts and placed on cotton wool. Existing labels, hand printed on tan card: Cerussite, crystalline ore of silver lead Galena, ore of silver lead, fine grained Galena, ore of silver lead, coarse grained Native copper, wave like form Malachite, copper carbonate, ore of copper Chalcopyrite, copper iron sulfide, ore of copper lead Malachite, copper carbonate, ore of coppermining, sampling, mineral samples

Azurite is a secondary copper mineral made by the weathering of copper sulphide ore deposits. Azurite is formed from copper, carbon, oxygen and hydrogen. There are over 45 forms of azurite that are more well-known, however over 100 forms have been found. Azurite is also commonly found together with Malachite, and Azurite is often psuedomorphed to Malachite. This specimen was found at the Great Cobar Copper Mine in New South Wales, which was founded in 1870. At the time it was one of the largest mining operations in the world. It was the largest copper mine in Australia and housed the southern hemisphere’s tallest chimney stack. The international price of copper collapsed at the end of World War 1 which led to the closure of the Great Cobar Mine on March 16th 1919. A year later on March 10th 1920 an underground fire in the CSA (Cornish, Scottish, Australian) mine started and burned for 16 years. The closure of the mine and the fire left thousands jobless and many people left the area. These were factors in Cobar facing a long stretch of poverty, until a boom in the 1960s led to the reopening of the mine. The mine still operates today, obtained by Metals Acquisition Limited in June 2023. Azurite is considered an uncommon mineral. Named for its deep blue colour, azurite was historically used for pigment making and as a gemstone, despite its softness. This specimen was donated to the Burke Museum between 1868-1880 as part of a larger collection of geological and mineral specimens. Many of the specimens in this collection were obtained as part of the Geological Survey of Victoria, which started in 1852. The Survey aimed to map the scientific makeup of the earth.A solid copper mineral with shades of darker blues almost covering it.burke museum, beechworth, indigo shire, beechworth museum, geological, geological specimen, mineralogy, cobar mines, great cobar copper mine, cobar mining, new south wales, azurite, azurite specimen