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

David Armfield: David Armfield studied at the National Gallery School in the 1940s and turned to full time painting in 1965. RMIT printamking. He won several art awards, including the Ramsay Prize - NGV School, the Redcliffe and in 1980 the Eltham Prize. Armfield is represented in the National Gallery collection, Art Gallery of NSW, Tasmanian Art Gallery, several regional art galleries across Australia as well as private collections. David Armfield first came to Eltham in the late 1930s on painting trips and used to camp on the banks of Diamond Creed. He returned to Eltham in 1957 with his wife Joan who has subsequently become one of the district's potters, and built a mud brick house and studio in John Street on land adjoining Peter Glass. He has painted many landscapes in the district including intimate studies of the bush floor and the aftermath of bush fires.Ceramic stoneware. Reduction fired, dolomite glaze, wax resist decoration over iron. Decorated/painted by David Armfield. Cast by Joan Armfield.

Penleigh Boyd, Robin and Patricia Boyd's son, writes “Prior to 1950 Robin, like most other amateur or hobby photographers, took black and white printed photographs. The oldest slides date from 1950 when Robin and Patricia travelled to Europe on Robin’s Robert Haddon Travelling Scholarship.” In 1948 Robin Boyd was awarded ‘joint first place’ in the Robert Haddon competition for his design of Mildura art gallery. The scholarship helped fund their first overseas trip. Robin and Patricia were passengers on the Greek ship “Cyrenia” departing in May 1950, passing through the Suez Canal and landing in Genoa five weeks later. For six months, they travelled extensively throughout Europe (predominantly driving themselves) - France, Italy, United Kingdom, Sweden, Denmark, Germany, Austria, Switzerland and Spain.Colour slide in a mount. House in the Dolomites, ItalyItaly / House / Dolomites / This way up (All Handwritten)haddon travelling scholarship, haddon, robin boyd, slide

Penleigh Boyd, Robin and Patricia Boyd's son, writes “Prior to 1950 Robin, like most other amateur or hobby photographers, took black and white printed photographs. The oldest slides date from 1950 when Robin and Patricia travelled to Europe on Robin’s Robert Haddon Travelling Scholarship.” In 1948 Robin Boyd was awarded ‘joint first place’ in the Robert Haddon competition for his design of Mildura art gallery. The scholarship helped fund their first overseas trip. Robin and Patricia were passengers on the Greek ship “Cyrenia” departing in May 1950, passing through the Suez Canal and landing in Genoa five weeks later. For six months, they travelled extensively throughout Europe (predominantly driving themselves) - France, Italy, United Kingdom, Sweden, Denmark, Germany, Austria, Switzerland and Spain.Colour slide in a mount. Village near Bolzano in the Dolomite, ItalyItaly / Village / Near Bolzano / Dolomites / Up (All Handwritten)haddon travelling scholarship, haddon, robin boyd, slide

A granular metamorphic rock, marble is derived from limestone or dolomite and composed of calcite or dolomite interlocking grains. Heat and pressure from overlying sediments form it from limestone buried deep in Earth's crust. Graphite, pyrite, quartz, mica, and iron oxides can affect rock texture and colour. This specimen was found in Carrara, Italy. Carrara marble is the most common marble found in Italy, and it gets its name from the region where it is located. The marble was also called Luna marble and was used as a decorative element in buildings and sculptures. It has been quarried since Roman times in the Lunigiana, the northernmost tip of Tuscany, just outside the city of Carrara in the province of Massa and Carrara.Marble is one of the most popular and expensive rocks used in sculpture, architecture, interior decorations, statues, table tops, and novelties. It is available in various colors and textures depending on the chemical composition. The strength of the rock and its ability to hold finer details have made it a favorite among designers. 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 Marble (metamorphic rock) predominantly white with specks light grey and ochre geological specimen, geology, geology collection, burke museum, beechworth, marble, carrara marble, italian marble, marble specimen, tuscany

Galena occurs in a range of deposit contexts, often in metalliferous veins, such as Broken Hill, Australia; Coeur d’Alene, Idaho, United States.; Clausthal Zellerfeld, Germany; and Cornwall, England. Large deposits also replace limestone, dolomite, or occasionally organic matter, or have a contact-metamorphic origin. Galena is additionally found in cavities, brecciated (fractured) zones in limestone and chert, and in coal beds. This specimen was recovered from Broken Hill NSW and is 60% lead with 8-12 oz/silver to the ton.Galena or 'lead glance' is a grey lead sulfide and the chief ore mineral of lead. It forms isometric crystals in which the ionic lattice is similar to sodium chloride. Galena is brittle and easily weathers to secondary lead minerals, with the upper part of mineral deposits often containing cerussite, anglesite, and pyromorphite. It usually contains silver, which is mined along with its lead content. Other commercially important minerals that form in close association with galena are antimony, copper, and 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 small-sized solid specimen containing one mineral with a sparkly silver metallic lustre exterior and pastel-grey interior.geological specimen, geology, geology collection, burke museum, beechworth, galena, lead sulphide, alfred selwyn, broken hill