This specimen was recovered from Mica Schist, Canada. Chalcopyrite is a copper iron sulfide mineral with a chemical composition of CuFeS2. Its name derives from the Greek words for copper (chalco-) and brass (pyrite). It can be found in shades of yellow, green and grey, and, when exposed to acid, it can change to purple, blue, violet and yellow tones. Weathering can cause loss of its metallic luster and its brass-yellow colour. Chalcopyrite forms under various conditions, with the most significant deposits being hydrothermal in their origin. It is known globally as the most important ore of copper for thousands of years, and is thus considered a very important mineral formation. Given its golden appearance, it is often confused for the mineral gold, earning it the popular reputation as 'fool's gold' or 'yellow copper'. However, it can be straightforwardly distinguished from gold; the latter is soft, with higher specific gravity and a yellow streak, whereas chalcopyrite is brittle, easily scratched by a nail, and has a greenish grey streak. Copper was the first metal that was used by people. It was discovered by the Neolithic man about 9,000 years ago and it gradually replaced stone as it was easier to be shaped. In Australia, search for copper began after the European settlement, leading to the discovery of substantial deposits, like the one at the Olympic Dam in South Australia, which is regarded as one of the largest copper deposits in the world. Chalcopyrite has been used for copper since smelting processes began approximately five thousand years ago. Although by no means rare, this the specimen of this mineral can be used to reflect a wider history of industrial uses of copper for a significant portion of human 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 solid hand-sized copper iron sulfide mineral of brass yellow, often with an iridescent tarnish, with greenish-black streak and submetallic luster. Chalcopyrite can be formed in several ways, including crystalizing from accessory minerals in igneous rocks, or from magma or within volcano sulfide deposits. Most commonly, chalcopyrite are found in hydrothermal conditions, where it forms in hydrothermal veins. As a member of the tetragonal crystal system, it often takes the shape of tetra-headed crystals, often with striations along the sides of the crystals. #18 Copper pyrites/(chalcopyrite) in/Laurentian Slate/(page 315 of inventory)/page missing from/descriptive catalogue/ Other label: 81 /fool's gold, chalcopyrite, mineral, rock, geology, geological, hydrothermal, neolithic, european settlement, olympic dam, south australia, stone, deposits, specific gravity, greenish grey streak, brittle, mineral gold, metallic luster, cufes2, greek words

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

Lusterware is a type of pottery or porcelain with a metallic glaze that gives the effect of iridescence. The technique on pottery was first developed in Mesopotamia (modern Iraq) in the early 9th century. It is produced by metallic oxides in an overglaze finish, which is given a second firing at a lower temperature in a "muffle kiln", or a reduction kiln, excluding oxygen. The Lusterware effect is a final coating applied over the ceramic glaze, and fixed by a light second firing, applying small amounts of metallic compounds (generally of silver or copper) mixed with something to make it paintable (clay or ochre). This is then fired in a reducing atmosphere at a temperature high enough to "soften" the glaze from the first firing, and break down the metallic compounds, leaving a very thin ("perhaps 10 or 20 atoms thick") layer that is fused with the main glaze, but is mainly metal. Lusterware normally only uses one colour per piece, and the range is limited a "gold" derived from silver compounds was historically the most common. The process has always been expensive and rather unpredictable, always requiring two firings, and often the use of expensive materials such as silver and platinum. The very thin layer of luster is often delicate, and many types of Lusterware are easily damaged by scratching removing the metallic layer, or by contact with acids. Lusterware has therefore always been for display and occasional use, although by the 19th century it could be relatively cheap. Many pieces show the luster effect only working correctly on parts of the surface, or not at all. An item probably made in Staffordshire UK where this type of pottery was popular in the late 19th century by unknown pottery as the subject item has no marks. The teapot at this time cannot be associated with a historical event, person, or place, provenance regards manufacture is unknown, item assessed as a collection asset given it was produced before 1950.Teapot ceramic ornate copper lusterware abstract floral design handle has a protruding sculptured bird for thumb grip. Nonewarrnambool, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, teapot, tea set, kitchen ware, ceramic, lusterware, pottery, staffordshire uk, pottery finishes