Plan of the Great Extended Hustler's Mine on the Hustler's Line of Reefs, Bendigo. Bulletin No 33, Plate No X. Lease No 7382. Plan has map of streets. Mine was located in the block bounded by Langston and Anderson Streets and was between the Hustler's Anticline at Surface and the Lightning Hill Anticline at Surface. Latham & Watson's Shaft is also mentioned. Levels are numbered and a table shows the Levels and their Depths. Geological Survey of Victoria. Signed by H A Whitelaw, Underground Survey Office, Bendigo, September 1913. This item has not been scanned or photographed.mining, parish map, great extended hustler's mine, hustler's line of reefs, mining lease no 7382, geological survey of victoria, underground survey office bendigo, h a whitelaw, latham & watson's shaft

Plan of the Great Extended Hustler's Mine. Bulletin No 33, Plate No XI. Shows No 2 Shaft, Latham & Watson's Shaft, levels and their depths and some geographical features. Geographical Survey of Victoria emblem and signed by H A Whitelaw, Underground Survey Office, Bendigo, September 1913. Has reference to photos.mining, parish map, great extended hustler's mine, no 2 shaft, latham & watson's shaft, geological survey of victoria, underground survey office bendigo, h a whitelaw

Transverse Section of the Fortuna Hustler's Mine on the Hustler's Line of Reef, Bendigo. Bulletin No 33, Plate No III. Drawing shows poppet legs on the surface and Sill of Shaft 745.38 feet above Sea Level. Shows levels and their depths, geographical features and stone encountered. Reference table to stone and geographical features. Geographical Survey of Victoria emblem. Signed by H A Whitelaw, Underground Survey Office, Bendigo. mining, fortuna hustler's mine, hustler's line of reef, geological survey of victoria, underground survey office bendigo, h a whitelaw

Longitudinal Section of the Fortuna Hustler's Mine on the Hustler's Line of Reef, Bendigo. Bulletin No 33, Plate No IV. Shows poppet legs at the surface level, Datum Line 750 feet above Sea Level, levels and their depths, the amount of gold per ton and some geographical features. Geological Survey of Victoria emblem and signed by H A Whitelaw, Underground Survey Office, Bendigo. Note - Plates 4, 8, 13, 20, 26 & 31 form a Longitudinal Section from Fortuna Hustler's to Hustler's Consols Mine. mining, parish map, fortuna hustler's mine, longitudinal section of the fortuna hustler's mine, geological survey of victoria, h a whitelaw, underground survey office bendigo, hustler's line of reef, hustler's consols mine

Plan of the Fortuna Hustler's Mine, Bulletin No 33, Plate No II. Geological Survey of Victoria. Signed by H A Whitelaw, Underground Survey Office Bendigo, September 1913. Map shows levels and depths. There are smaller drawings of some sections of some levels. mining, parish map, fortuna hustler's mine, plan of the fortuna hustler's mine, geological survey of victoria, h a whitelaw, underground survey office bendigo

East & West Crosscuts, North & South of Shaft, Hustler's Reef Mine Bulletin No 33, Plate No XIX. Map shows main shaft and smaller drawing of section with different stone encountered. Also gives location in relation to the shaft, e. g. 225'E & 150'S of Shaft. Reference diagram to show the different stone and features encountered. Geological Survey of Victoria emblem. Signed by H A Whitelaw, Underground Survey Office Bendigo, September 1913. mining, parish map, hustler's reef mine, east & west cross-cuts north & south of shaft, geological survey of victoria, h a whitelaw, underground survey office bendigo

Transverse Section of the Hustler's Reef Mine on the Hustler's Line of Reefs. Bulletin No 33, Plate No XVIII. Shows cross-cuts and their depth, different types of stone and geological features encountered. Drawing of poppet legs at the surface and Sill of Shaft 756.39 ft above Sea Level. Reference Table shows key to the different stone and geographical features encountered. Geographical Survey of Victoria. Signed by H A Whitelaw, Underground Survey Office, Bendigo, September 1913. Thompson's Reef is also mentioned on the map. mining, hustler's reef mine, transverse section of the hustler's reef mine, geological survey of victoria, h a whitelaw, underground survey office bendigo, thompson's reef.

Transverse Section of the Hustler's Consols Mine Bulletin No 33, Plate No XXXIII. Map shows poppet legs at the surface and Sill of Shaft 779.42 feet above Sea Level. Shows the different levels and their depths and the different stone and geographical features encountered. Has larger drawing of Section A - B. Geographical Survey of Victoria. Signed by H A Whitelaw, Underground Survey Office Bendigo, September 1913. mining, parish map, hustler's consols mine, transverse section of the hustler's consols mine, geological survey of victoria, underground survey office bendigo, h a whitelaw

BHS CollectionHandwritten notes on recommendations for cleaning up and signposting Victoria Hill. Also contains list of photos from the Bendigonian of 1899. List of photos: Shamrock Mine, Undershot Water Wheel at Diamond Hill for Phillips Crushing Battery. Mr. Ballerstedt's Crushing Battery at Victoria Hill, Thompson's Foundry at Castlemaine, Machinery made for Bendigo Mines, Air Compressor at Shenandoah Mine, Winding Engine at Koch's Pioneer Mine, Poppet Legs at Koch's Pioneer Mine, Air Compressor at New Chum Railway Mine, Fortune Hustlers G M Co Bendigo View of Mine, Winding Plant and Afternoon Shift and Underground Work in the New Chum Railway. Also mentioned are notes on Machinery made by Thompsons. Also, a carbon copy of Annual Report to Bendigo Branch Royal Historical Society, Victoria 1/7/71. Mentioned in the Report are: Historical Ball, The Central Deborah, Victoria Hill, Tours and Society Business. Albert Richardson document?document, victoria hill, recommendations for victoria hill, north old chum, ballerstedt's rich 24 yard claim, floyds battery lansell's big 180, the bendigonian 26/1/1899, 2/2/1899, 20/4/1899, 11/5/1899, 10/8/1899, 14/9/1899, shamrock mine, undershot waterwheel at diamond hill, phillips crushing battery, mr ballerstedt's crushing battery, thompson's foundry, shenandoah mine, koch's pioneer mine, new chum railway mine, fortuna hustlers g m co bendigo, new chum railway, st mungo lady barkly, catherine reef, new moon, rae's open cut, old court house eaglehawk, police barracks, vic wodetzki, joss house, central deborah, central nell gwynne, mr harold curnow, bendigo branch royal historical society victoria, mrs kingerlee, felicity kingerlee, mr h biggs, city council, rotary club of bendigo south, white hills cemetry, chinese joss house, bendigo pottery, mr derham, reservoir high, princess theatre, a n a hall, mr hattam, col. sprenger, survey corps, a richardson

When Richard Daintree rejoined the Victorian Geological Survey as a field surveyor in January 1859, he pioneered the use of photography in field-work. The glass plates attributed to him by the State Library of Victoria show four images of the mines in Clunes, Victoria, Australia in the 1860'sBlack and white reproduction of Port Phillip Colonial & Gold Mining Co., Clunes, Victoria, Australia in a light wood timber frameOn Reverse: Handwritten in pencil Port Phillip Co. 1860's Nettleton Photography glass plate Latrobe Libraryport phillip and colonial gold mining co., richard daintree

Typed notes for a tour of the area. Areas mentioned are: Hospital Hill, The Central Deborah Mine, New Chum Railway Mine, The Rocks, New Chum Hill, Victoria Hill, Central Nell Gwynne, Rae's Open Cut, Housing Commission Homes and Latham and Watson's. Description of machinery at the Central Deborah Mine, yields, dividends, depth of shafts and directions to get ot the various places is included.document, gold, victoria hill, bendigo branch historical society mine tour, all saints church, joseph la trobe, bendigo's first hospital, sacred heart cathedral, the central deborah mine, city council, londonderry west shaft, new red, white and blue consolidated (big blue), a roberts & sons, big deborah, the new golden fleece, new chum goldfields, central wattle gully mine chewton, virginia consols, black's quarries coldstream, thompson's engineering and pipe co ltd castlemaine, new chum railway mine, golden square methodist church, the rocks, e j dunn, gold monument, shamrock mine, mt alvernia hospital, j b lazarus, john brown knitwear factory, gold fmines hotel, david sterry, new chum hill, fortuna villa, geo lansell, theodore ballerstedt, a h q survey regiment headquarters, old chum mine, central nell gwynne, rae's open cut, theodore ballerstedt, new chum syncline, little 180 mine, victoria quartz, wittcheibe's 'jeweller's shop', adventure, advance, cinderella, j n macartney, bendigo goldfields registry 1870, wm rae, johnson's devonshire mine, snobs hill mine, ellenborough mullock heap, belmont mullock heap, sadowa, st mungo, united devonshire, mechanic's institute, log lock-up, court house, j b watson, housing commission homes, hustlers hill, latham and watsons', the great extended hustlers, a richardson

Typed notes on Victoria Hill and New Chum Hill. Notes give location, value of gold and plans for a mining museum.document, gold, victoria hill, victoria hill and new chum hill, john neil macartney, the age, the australasian, bendigo goldfields registry 1871, victoria reef quartz mine, north old chum, victoria consols, new chum and victoria, pioneer, lansell 222 mine, lazarus, barnet lazarus, mt. alvernia hospital, fortuna villa, george lansell, a. h. q. survey regiment, central red white and blue, hudsons, burrowes & sterry, b c v channel 8, bendigo and district tourist association, section 14 of the lands act 1958, mr a r richardson, cr t r flood, tourist association

Typed copy of notes on Victoria Hill, Ironbark and New Chum Hill - An Historic Landmark. Notes include locality, some of the early mines, their depth, gold produced, dividends paid, vertical winding engine and crushing battery. Mines mentioned are: Rae's, Wittscheibe and Company 'Jeweler's Shop', the Advance, Cinderella Mine, Lansell's 180, North Old Chum, Victoria Quartz, Burrowes and Sterry's, Lazarus' Claim, Gibbs and Lazarus, Bonatti's, Menzies, Hildebrandt and Kock's, Ellesmere, Old Chum, New Chum and Victoria, New Chum United, New Chum Consolidated and the Garibaldi.document, gold, victoria hill, victoria hill ironbark, rae's, wittscheibe and company 'jeweller's shop', hopetoun band room, advance, cinderella mine, geo lansell, lansell's 180, new chum hill, fortuna mansion, new chum drainage association, north old chum, b c v 8 television studio, royal survey regiment, burrowes and sterry, lazarus claim, gibbs and lazarus, bonatti's, menzies, hildebrandt and kock's, ellesmere, old chum, p m g repeater station, ballerstedt, mr geo lansell, new chum and victoria, phoenix, mt alvernia hospital, new chum united, new chum consolidated, garibaldi, mr clarke magee

Majority of Galena in Australia is found in hydrothermal deposits emplaced around 1680 million years ago which have been heavily metamorphosed. Galena is the natural mineral form of lead sulfaide. It occurs generally as fine to large crystals due to syntectonic remobilization at low temperatures and moves to a suitable location. The colour is a shining lead and silvery gray with high specific gravity between 7.2 and 7.6 gms/cm3 and contains 86.6 lead sulfaide in its purest form. Its cyrstal system is cubic with perfect cleavages, and contract penetration and lamellar twinning. This particular specimen is from the Broken Hill mine, it is one of the largest lead mines located in Western New South Wales and still has ore reserves amounting to 20.9 million tonnes of ore grading of 7.4% lead, 9.4% zinc, and 61.5 million oz of Silver. Throughout its history, it has produced over 200 million tonnes of ore throughout its 127 years of mining history dating back to 1885. Galena mineral ore found in Australia is considered rare, as it is only currently found in the Broken Hill Mine of Western New South Wales. It represents heritage value through the systematic collecting of the geological surveyers in Victoria and Australia during the early to late 19th Century. The fact that it is only found in one mining area of Australia, shows that this specimen is rare for examples of Australian Galena. This mineral specimen is one part to a larger collection, aquistion, and distribution of Garnet in Galena around Australia and parts of the world and donated to the Burke Museum between 1860-1880. While this specimen was not found by the Victorian Geological Survey, it shows the historical need for mapping geological areas around the Gold Rush region to further identify areas of precious metal and gem aquisition. Additionally, collecting these specimens was an important part of mapping the scientific make up of the earth's surface. Many were sent to institutions for further contribution to research and scientific knowledge of the specimens. A solid coin-sized lead and zinc sulphaide and zinc silicate ore mineral in shades of black and red with shiny black points. GARNET CRYSTALS in / GALENA (lead sulphide), / SPALERITE (zinc sulphide), / WILLEMITE (zinc silicate) ore. / Locality: Broken Hill, NSWburke museum, #beechworth, indigo shire, beechworth museum, geological, geological specimen, mineral, galena, galena quartz, broken hill mine, broken hill, nsw

Pyrite also known as iron Pyrite or fools gold is an iron sulfide with a chemical formula of FeS2 and is the most abundant sulfide mineral. Its metallic luster and pale brass-yellow hue give it a superficial resemblance to gold for which its nickname of Fools Gold comes from. There are a number of iron pyrite mines in Victoria and many would have been mined during Victoria's Gold Rush revolution in the 19th century. As it's lustrius yellow metallic look closely resembles gold, it is likely that it was often mistaken for gold as real gold was also often found in similar metamorphic and sedimentary rock. 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 collections were collected in Victoria as part of the Geological Survey of Victoria that begun in 1852 (in response to the Gold Rush). Collecting these specimens was an important part of Australia's early Geoplogical scientific discovery for mapping the earth's surface. It is unknown where in Victoria this specimen was mined from however; it shows strong provenance connections to Victoria's gold mining history and represents through larger economic and cultural structures the impact the Gold Rush had on Victoria during the 19th century. A solid coin-sized Pyrite crystal in black slate in shades of beige with tiny crystal structures. Pyrite / crystals / BB / in black slate / probably / victoria / (nice specimen)geology, geological specimen

Colour Copy of Plan of the General Survey from the Town of Malmsbury to the Porcupine Inn, from the sources of Forest Creek to Golden Point, shewing (sic) the Alexandrian Range also Sawpit Gully Bendigo and Bullock Creeks. Handwritten note under the title a follows '' Forwarded to the Colonial Secretary with my letter No A 53/105 dated 30th March 1853 for transmission to the Geological Surveyor. R Hoddle Surveyor General. ' Stamped by Department of Mines Victoria with record#123 in Top right Hand corner. Also contains a catalogue number 2053/M/2. Part of the Contents of a DVD entitled 'Mapping Great Change' - Archival Maps, produced to support an exhibition in the Post Office Gallery Bendigo. A description of the Map, its history and implications for both historical and future discussions is contained in an Essay 'Mapping Great Changes' : The landscape of central Victoria by Gerry Gill.R. Hoddlemap, bendigo, country lands

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

Longitudinal section of Hustler's Reef & Hustler's Reef no. 1 mine. Plate XX, note plates 4,8,13,20, 26 & 31 form a longitudinal section from Fortuna Hustler's to Hustler's Consols Mine. produced by the underground survey office, Bendigo, September 1913.hustler's reef, bendigo goldfields, hustler's reef no.1 mine

Plan of the Hustler's Reef & Hustler's Reef No 1 Mines on the Hustler's Line of Reefs, Bendigo Bulletin No 33, Plate No XIV. No 8 connecting No 10 (Hustler's Reef), No 11 connecting No 13 (Hustler's Reef), No 13 (Hustler's Reef No 1) connecting No 15 (Hustler's Reef) and No 10 Hustler's Reef No 1 rise to Comet Mine. Map shows different levels in relation to the two shafts, the lines of the Hustler's Line of Reefs and the Lightning Hill Line of Reefs, the approximate Boundary of Lease and the Comet Co., the adjoining lease. Table on the left shows the levels and their depths of the two mines. Signed by H A Whitelaw, Underground Survey Office, Bendigo, September 1913. Geological Survey of Victoria emblem. mining, parish map, hustler's reef & hustler's reef no 1 mines, hustler's line of reefs lightning hill line of reefs, comet co., h a whitelaw, underground survey office bendigo, geological survey of victoria

Plan of the Hustler's Reef & Hustler's Reef No 1 Mines on the Hustler's Line of Reefs Bulletin No 33, Plate No XVII. Two drawings with different levels on each for clarity. Shows depth and some geographical features. Geological Survey of Victoria emblem. Signed by H A Whitelaw Underground Survey Office Bendigo, September 1913. mining, parish map, hustler's reef & hustler's reef no 1 mines, hustler's line of reefs, geological survey of victoria, underground survey office bendigo, h a whitelaw

Plan of the Hustler's Reef & Hustler's Reef No 1 Mines on the Hustler's Line of Reefs Bulletin No 33, Plate No XV. Plan shows the two mines with depth of levels, geological features and levels in relation to the shaft. Geological Survey of Victoria emblem and signed by H A Whitelaw, Underground Survey Office Bendigo, September 1913. Note - The Lease Boundaries shown on this plan are only in their approximate relative positions to Nos 13, Intermediate and 14 Levels of the Hustler's Reef No 1 workings, and Nos 15, 16 and 17 Levels of the Hustler's Reef workings.mining, parish map, hustler's reef & hustler's reef no 1 mines, geological survey of victoria, underground survey office bendigo, h a whitelaw, hustler's line of reefs

Map showing the East & West Crosscuts, North & South of Shaft of the Hustler's Reef No 1 Mine on the Hustler's Line of Reefs Bulletin No 33, Plate No XXII. Drawing shows where the different levels are, the stone encountered and smaller drawings of other sections near the shaft. Also shows some geographical features. Signed by H A Whitelaw, Underground Survey Office Bendigo, September 1913. Geological Survey of Victoria emblem.mining, parish map, hustler's reef no 1 mine, geological survey of victoria, h a whitelaw, underground survey office bendigo, hustler's line of reefs

Plan of the Hustler's Reef & Hustler's Reef No 1 Mines on the Hustler's Line of Reefs, Bendigo Bulletin No 33, Plate No XVI. Plan shows the two shafts and the levels in relation to it. No 9 Level 896 feet 9 inches connecting No 10 Level at 867 feet 2 inches. Plan shows depth of levels and geographical features. Signed by H A Whitelaw, Underground Survey Office, Bendigo. Geographical Survey of Victoria emblem.mining, parish map, hustler's reef & hustler's reef no 1 mines, hustler's line of reefs, h a whitelaw, underground survey office bendigo, geographical survey of victoria

Map and plan of the Fortuna Hustler's Mine on the Hustler's Line of Reefs. Bulletin No 33, Plate No 1. Plan gives depth of the different levels. Bendigo Railway Station is on the map and also a number of the streets. Carpenter Street is called Cemetery Road. Also on the Hustler's Line of Reef is the Summer Hill Shaft. Shown is the Hustler's Royal Reserve No 2 Lease. Map has the Geological Survey of Victoria crest. It is signed by H Whit ? an Underground Survey Office Bendigo, September 1913. map, fortuna hustler's mine, hustler's royal reserve no 2 lease, summer hill shaft, hustler's line of reef

Longitudinal section of the Comet Mine on the Hustler's Line of Reef Bulletin No 33, Plate No XXVI signed by H. S. Whitelaw, Underground Survey Office Bendigo, September 1913. Map shows datum lines, depths of levels, approximate boundaries and references to other plans. Note - Plates 4, 8, 13, 20, 26 and 31 form a Longitudinal Section from Fortuna Hustler's to Hustler's Consols Mine. Geological Survey of Victoriamining, parish map, hustler's line of reef, longitudinal section of comet mine bulletin no 33 plate no xxvi, h s whitelaw

Transverse section of the Comet Mine on the Hustler's Line of Reef Bulletin No 33, Plate No XXV signed by H. A. Whitdon, Underground Survey Office Bendigo September,1913. Map shows depth of the different levels, the type of stone and shaft about 2020 deep. A number of smaller drawings on the side. Reference explaining the different types of stone, etc. Geological Survey of Victoriamining, hustler's line of reefs, transverse section of comet mine bulletin no 33 plate no xxv, lightning hill line of reef

Plan of the Comet Mine on the Hustler's Line of Reefs Bulletin No 33, Plate No XXIII. Map shows depths, Lightning Hill Anticline, Hustler's Anticline and approximate Lease Boundary. Signed by H. S. Whitelaw, Underground Survey Office Bendigo, September 1913. United Hustler's & Redan Co and Hustler's Reef Co also named on map. Geological Survey of Victoriamining, hustler's line of reefs, comet line plan belletin no 33 plate no xxiii, lightning hill anticline, hustler's anticline, united hustler's & redan co, hustler's reef co, h s whitelaw

Plan of the Comet Mine on the Hustler's Line of Reefs Bulletin No 33, Plate No XXIV signed by H S Whitelaw, Underground Survey Office Bendigo, September 1913. Upper and Lower Levels and approximate boundaries shown. Depths shown.Geological Survey of Victoriamining, parish map, hustler's line of reefs, comet mine plan bulletin no 33 plate no xxiv

Drawing with Longitudinal Section through the Saddle Reefs along portion of Hustler's Line of Reefs, Bendigo. Map shows the depth of the mines, reef numbers and Datum 700 ft above sea level. North and South is also noted on the map. Map signed by H. S, Whitelaw, Underground Survey Office, Bendigo, September 1913. Bulletin No 33, Plate No XXXIV. Bendigo Creek, Ironbark Creek and Long Gully are also noted. Mines are: Fortuna Hustlers, Hustler's Royal Reserve No 2 Main Shaft, Hustler's Royal Reserve No 2 Park Shaft, Royal Hustler's, Imperial Hustler's, Extended Hustler's Freehold, Great Extended Hustler's Tribute (Pups), Old Shaft, Great Extended Hustler's Reef No 2, Great Extended Hustler's Main Shaft, Old Shaft, Hustler's Reef, Hustler's Reef No 1, Comet, K. K., United Hustler's & Redan, Old Shaft and Hustler's Consols. Has Geological Survey of Victoria Crest and underneath is: H. Herman, Director, W. Dickson, Secretary for Mines, The Hon. J Drysdale Brown M L C. Minister of Mines.Geological Survey of Victoria Crestmining, hustler's reef maps, hustlers line of reefs, bendigo creek, royal hustler's, imperial hustler's, extended hustler's freehold, great extended hustler's tribute (pups), great extended hustler's reef no 2, great extended hustler's main shaft, hustler's reef, hustler's reef no 1, united hustler's & redan, old shaft and hustler's consols.h s whitelaw, underground survey office bendigo september 1913

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