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A Glossary of Rock and Mineral Terminology compact mineral mass of mineral matter that forms usually in sedimentary rock around a center such as shell leaf or fossil nugget A lump of native gold silver platinum copper etc

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Platinum occurs in dark silicate rocks with minerals that contain iron and magnesium It is usually found as fine grains or flakes scattered throughout the rock or as thin layers of metal ores called sulfides In rare instances platinum is found as nuggets in stream placer deposits Platinum is the most commercial of the PGMs The largest

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How to Identify Platinum in Ore Deposits Sciencing

Examine the metal Platinum rarely forms crystals so you are most likely to see flakes or small nuggets When platinum does form crystals it takes a cube shape often with rounded corners or merging into other cubes

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The rocks of the Lake Superior region some of the oldest in the world The region is world famous for vast deposits of iron ore and native copper Sperrylite a platinum mineral with chalcopyrite from the Vermilion Mine Sudbury Ontario which are preserved in these rocks as some of the world 39 s oldest known fossils

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Platinum Mineral Information photos and Facts Natural

Platinum Nugget California Composition Structure and Associated Minerals Platinum is a rare metal which occurs almost exclusively native only one rare compound sperrylite PtAs2 being known Platinum is usually alloyed with several per cent of iron and with smaller amounts of iridium osmium etc

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Geology of Gems

Whether or not sediments or sedimentary rocks contains gems or precious metals depends Would a gold pebble nugget of ½ inch in diameter be deposited in a quartz pebble and precious metals gold and platinum in sedimentary deposits Hunting for fossils is a popular activity for gem rock and mineral clubs

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The Mineral platinum The primary occurrence is in plutonic rocks such as Olivine In Australia Platinum nuggets have been found in the Fifield District of nbsp

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9kg Gympie nugget Page 1 Alluvial Gold Prospecting

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RARE PLATINUM NUGGET Konder Massif Far Eastern Siberia Russia More precious than gold natural platinum nuggets are extremely rare and hard to obtain The reason for this is twofold only two locations in the world produce platinum in any significant quantity China and Russia and because most of the natural nuggets are small in size they

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Gold Nugget is a mineral which is fixed by chemical

Gold Nugget is a mineral which is fixed by chemical formula Fishbone is not a from GLG 101 at University of Phoenix

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How to Identify Platinum in Ore Deposits Sciencing

PGEs can be therefore be found among mafic and ultramafic volcanic igneous rocks Platinum shines with a silvery color but it does not tarnish like silver Canada provide a placer source for platinum in certain rivers where it coincides with gold and other minerals Platinum flakes can be recovered through gravel washings shaking

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Rocks Stones Fossils and MInerals 38 likes Specializing in amazing rocks stones fossils and minerals

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Platinum is rarely found on the Earth s surface and is in fact 30 times rarer than gold Sources for ore rocks often exist in areas of stream flow in the form of placer deposits

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Rock Hounding amp Prospecting

23 Apr 2010 There are different levels of rock hounding and prospecting Unique Minerals and Rocks of Wyoming 2000 and Gems Minerals amp Rocks of Wyoming 2009 Hills which actually has some fossil leaves impressed in the jasper Platinum and palladium may be found in nuggets grains and flakes and nbsp

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The Mineral platinum Platinum is the rarest and most expensive of the popular precious metals It is much rarer then Gold Due to its rarity and value it is not readily available to mineral collectors and is seldom represented in in all but the highest end mineral collections

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USGS Mineral Resources Program Platinum Group

In most rocks platinum group minerals are very small ranging in size from less than a micron to a few hundred microns in diameter Geologists can spend a lifetime working on rocks enriched in PGE and never see a platinum group mineral in a hand specimen so the presence of PGE must be confirmed by laboratory analysis Most of the world s

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Platinum nugget Smithsonian Institution

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Australian prospector finds a 11 pound gold nugget just 2

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Minnesota Gems Minerals and Fossils You Can Find

Minnesota is has various types of rock with formations including metamorphic igneous and sedimentary rocks Some known minerals and gemstones that can be found in Minnesota are agate binghamite and thomsonite A variety of fossils are also present at various locations of the state Lake Superior Agate Lake Superior agate was declared as the

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Date Creek Quartz ROCKS MINERALS and FOSSILS Nugget

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