Diggers & Mining: Diggers & Mining. Slide reads; Working from very imperfect records, all we can say is that, from 1851 to 1858, while new fields were being discovered, and much gold was to be obtained by primitive methods, the number of independent digger grew rapidly (though in the latter years of this period the average earnings per digger was falling rapidly). There were certainly over 100, 000 diggers in Victoria in 1858. Markings: 51/ 994:LIF 1. Used as a teaching aid.hanimounteducation, tertiary, mining

BHS CollectionDiggers & mining. The gold era. Better methods of treatment were adopted. Horses were used for puddling, - - - Markings 20 994.031 GOL:5. Used as a teaching aid.hanimounteducation, tertiary, goldfields

Blue handwritten one page document detailing 'Youngman & Harrisons Patent Basin for pulverizing quartz tailings and amalgamating fine gold with mercury'. Introductory comments the basin contains greater advantages for pulverizing quartz tailings & amalgamating than any yet constructed for that purpose; In its construction all machinery complications have been carefully avoided and yet it embodies all the best methods known for treating tailings and has besides other than advantages (both in cash and labour) that of treating puddling machine sludge and can be used as a concentrator with little or no extra expense.bendigo, mining, youngman & harrisons patent basin

The 1:32 scale model was built by Swedish model maker Carl Nordstrom and is now part of the Museums Victoria collection (currently not on display). The 1:48 scale model was built for display at the International Exhibition in London in 1862. It is now part of the British Science Museum, Wroughton, Wiltshire, United Kingdom. These models were part of a commission by Nordstrom who depicted a series of different gold mining extraction methods in Victoria from 1856 to 1859.Two photographs 1 x colour and 1 x Black and white in a dark wooden frame Showing models of Port Phillip Mine, Clunes, Victoria, Australia. Models are 1:32 scale constructed in 1858 using local materials and 1:48 build for possible display at the International Exhibition London 1862scale model, nordstrom

PORT PHILLIP MINE DRAWING BY REES DAVIES 1868WOODEN FRAMED DRAWING ON MATT BOARD UNDER GLASS. MERCURY TROUGHS, STRAKES AND STAMPS. PORT PHILLIP MINE. TYPED NARRATIVE AT THE BOTTOM (LOOSE)STAMPED WITH LINNEAN SOCIETY OF N.S.W. inc. 1884clunes, gold mining, mining equipment or methods, rees davies

Feldspar, derived from the German word feldspat, is a group of minerals which is the most common mineral group found on Earth, making up more than half of the planet's crust. The major rock-forming minerals in the Feldspar group include albite, anorthite, orthoclase and microcline. (Mindat, Feldspar Group). Orthoclase is part of the Feldspar Group subgroup, Alkaline Feldspar, which are known to be poor in calcium, and mostly rich in potassium. It is further also considered to be a K Feldspar, a subgroup of Alkaline Feldspar that are Potassium-dominant with variable crystal symmetry and Al-Si ordering state. Orthoclase are most commonly Colorless to white, Greenish white, Grayish yellow, or Pale pink and transparent to translucent with slightly pearly cleavage. The mineral rates at a 6 on the Mohs Hardness Scale. (cannot be scratched with a knife, but scratches glass with difficulty). The stronger green colour of this particular specimen is distinctive to the Broken Hill region (where it was found), and due to a small amount of lead. (BB) Its qualities find it misidentified at times as as microcline variety amazonite. Broken Hill is one of the world’s richest lead-zinc-silver deposits. The huge, 300-million-tonne orebody was discovered in 1883 and the superb mineral specimens attract collectors from around the world. (Australian Museum, Minerals from Australia: Australian mining regions)While feldspar is not by any means rare, this particular specimen has qualities distinctive to the Broken Hill mining district, with these properties leading at times to the mineral's misidentification. This creates potential for further study and identification of these mineral deposits through methods such as microscopic twinning, or using the position of certain d values in XRD patterns to calculate the degree of disorder of a K-feldspar, as discussed on the Mindat website (Mindat.com, Orthoclase:About Orthoclase). 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 small aluminosilicate mineral composition which is primarily pale green and blue-grey in colour with traces of beige and white throughout. Note: green plumbian orthoclase (aka green feldspar) is an indicator mineral for the Broken Hill style lead-zinc deposits.N/Abroken hill mine, geological specimen, minerology