• How to Identify Gold Silver and Platinum Metals Like a

    Identify sterling silver by finding the number 925. Some items that appear to be gold but have the 925 stamp are made of gold-plated sterling silver. Identify platinum by using this list Plat 900 PLAT 950 PLAT 10 IRID PLAT 10 IRID 90 PLAT COPLAT. Identify Palladium by the marking PD. Look at what is stamped after the markings I listed above

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  • How to Identify Gold Silver and Platinum Metals Like a

    Identify sterling silver by finding the number 925. Some items that appear to be gold but have the 925 stamp are made of gold-plated sterling silver. Identify platinum by using this list Plat 900 PLAT 950 PLAT 10 IRID PLAT 10 IRID 90 PLAT COPLAT. Identify Palladium by the marking PD. Look at what is stamped after the markings I listed above

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  • Platinum (Pt) AMERICAN ELEMENTS

    2021-5-25 · Platinum is a Block D Group 10 Period 6 element. The number of electrons in each of platinum s shells is 2 8 18 32 17 1 and its electron configuration is Xe 4f 14 5d 9 6s 1. The platinum atom has a radius of 137.3.pm and its Van der Waals radius is 175.pm. In its elemental form CAS 7440-06-4 platinum has a grayish white appearance.

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  • Sperrylite Mineral Information photos and Facts Platinum

    2012-2-18 · Use Sperrylite is an important ore mineral of platinum. In Canada platinum is obtained from the mattes obtained by smelting. the nickel copper ore of Sudbury in Ontario. The high-grade mattes contain from O2 to 0-5 oz. of platinum metals per ton. The platinum occurs in the Sudbury copper-nickel ore as sperrylite embedded in chalcopyrite.

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  • Easy Ways to Test Platinum 8 Steps (with Pictures)wikiHow

    2021-5-12 · Platinum is a precious metal that looks like silver or white gold to the untrained eye. But platinum has many characteristics that make it unique. It is harder than other precious metals so it resists scratches. It also doesn t tarnish and is denser than other precious metals. To see if your piece is platinum first look for a stamp or hallmark.

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  • MAPS SHOWING PLATINUM-GROUP ELEMENT

    2010-11-2 · MAPS SHOWING PLATINUM-GROUP ELEMENT OCCURRENCES IN THE CONTERMINOUS UNITED STATES UPDATED AS OF 1993 which are not hosted within the conventional magmatic ore deposits. For the present study every effort was made to enter identification of PGM in placer (and lode) deposits may or

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  • Platinum is produced in South Africa by Amplats Impala

    2012-2-7 · Since the identification of economic deposits of platinum in South Africa in 1924 by Hans Merensky a number of platinum mines have come and gone and some have merely changed identity. 1-3 South Africa currently has four integrated primary platinum producers namely Amplats 4 5 (Anglo American Platinum Corporation Ltd formerly Rustenburg Platinum Holdings Ltd) Impala Platinum 6

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  • Easy Ways to Test Platinum 8 Steps (with Pictures)wikiHow

    2021-5-12 · Platinum is difficult to scratch so you may have to run it over the stone a few times while applying some pressure. Leave a visible mark around 1 to 1 1⁄2 inches (2.5 to 3.8 cm) long on the stone. The stone will leave a scratch mark on your jewelry so choose a small inconspicuous part to test.

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  • PlatinumElement information properties and uses

    Platinum s properties allowed it to defy identification and classification until the 18 th century. Its high melting point and broad chemical resistance meant that obtaining a pure sample of the metal was difficult.

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  • Investigation into the mineralogy and flotation

    2014-10-15 · 1. Introduction. The 2.05 Ga Bushveld Complex in South Africa is host to some of the world s major platinum group mineral (PGM) ore deposits such as the Merensky reef UG2 reef and Platreef.Although the majority of the mines exploiting these deposits have underground workings several open cast operations do exist most notably the Platreef deposit.

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  • Petrogenesis of the Platinum-Group Minerals Reviews in

    The platinum-group minerals (PGM) are a diverse group of minerals that concentrate the platinum-group elements (PGE Os Ir Ru Rh Pt and Pd). At the time of writing the International Mineralogical Association database includes 135 named discrete PGM phases.

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  • Mining Platinum From The Road Hackaday

    2016-6-6 · June 7 2016 at 7 21 pm. It s funny how some people speculate about this while a French company has been doing it for years and makes 1 million a year mining palladium rhodium and platinum

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  • Sperrylite Mineral Information photos and Facts Platinum

    2012-2-18 · Use Sperrylite is an important ore mineral of platinum. In Canada platinum is obtained from the mattes obtained by smelting. the nickel copper ore of Sudbury in Ontario. The high-grade mattes contain from O2 to 0-5 oz. of platinum metals per ton. The platinum occurs in the Sudbury copper-nickel ore as sperrylite

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  • Platinum Earth Sciences Museum University of Waterloo

    2021-6-13 · Platinum arsenide or sperrylite is the only platinum ore of any significance besides native platinum. It was named after its discoverer Francis L. Sperry who was a chemist of Sudbury Ontario. Sperrylite is only found in abundance in Sudbury.

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  • How Do You Identify Silver Ore Reference

    2020-3-26 · Silver ore is heavy malleable and sectile. In other words the mineral can be forced out of its original shape and cut into pieces. Silver ore is very rarely found isolated in individual nuggets of pure silver. It is much more common for silver ore to be found fused with other minerals such as sulfur arsenic antimony or chlorine.

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  • Easy Ways to Test Platinum 8 Steps (with Pictures)wikiHow

    2021-5-12 · Platinum is a precious metal that looks like silver or white gold to the untrained eye. But platinum has many characteristics that make it unique. It is harder than other precious metals so it resists scratches. It also doesn t tarnish and is denser than other precious metals. To see if your piece is platinum first look for a stamp or hallmark.

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  • History zimplats

    2021-6-13 · Wollaston subsequently claimed the discovery of another element present in platinum ore this he called rhodium after the rose colour of its salts. The subsequent discoveries of iridium (named after Iris goddess of the rainbow because of the muticoloured nature of its salts) and osmium (from the Greek word for "odour " because of the

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  • SPERRYLITE (Platinum Arsenide)

    Uses Ore of platinum and as mineral specimens. Specimens. Sperrylite is a rare but economically important mineral. Although not found in very many places around the world and in all but one of these it is a minor constituent sperrylite is an important ore of platinum.

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  • PlatinumElement information properties and uses

    Platinum s properties allowed it to defy identification and classification until the 18 th century. Its high melting point and broad chemical resistance meant that obtaining a pure sample of the metal was difficult.

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  • Types of platinum and platinum nuggets Johnson Matthey

    2021-6-11 · Platinum metal is metallic silvery-grey. There is a picture of platinum-bearing ore on the front page of the "Platinum 2002 Interim Review". There is also a picture of Russian platinum nuggets on page 20 of PGM Mining in Russia in "Platinum 2004". Answer posted February 2005. Submitted by Ms Dennice Mashamba.

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  • History zimplats

    2021-6-13 · Wollaston subsequently claimed the discovery of another element present in platinum ore this he called rhodium after the rose colour of its salts. The subsequent discoveries of iridium (named after Iris goddess of the rainbow because of the muticoloured nature of its salts) and osmium (from the Greek word for "odour " because of the

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  • Types of platinum and platinum nuggets Johnson Matthey

    2021-6-11 · Platinum metal is metallic silvery-grey. There is a picture of platinum-bearing ore on the front page of the "Platinum 2002 Interim Review". There is also a picture of Russian platinum nuggets on page 20 of PGM Mining in Russia in "Platinum 2004". Answer posted February 2005. Submitted by Ms Dennice Mashamba.

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  • Platinum group chemical element group Britannica

    Platinum minerals are usually highly disseminated in sulfide ores particularly the nickel mineral pentlandite (Ni Fe) 9 S 8. The most common platinum-group minerals include laurite RuS 2 irarsite (Ir Ru Rh Pt)AsS osmiridium (Ir Os) cooperite (PtS) and braggite (Pt Pd)S. The world s largest deposit is the Bushveld Complex of South Africa.

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  • Platinum is produced in South Africa by Amplats Impala

    2012-2-7 · Since the identification of economic deposits of platinum in South Africa in 1924 by Hans Merensky a number of platinum mines have come and gone and some have merely changed identity. 1-3 South Africa currently has four integrated primary platinum producers namely Amplats 4 5 (Anglo American Platinum Corporation Ltd formerly Rustenburg Platinum Holdings Ltd) Impala Platinum 6

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  • Platinum group chemical element group Britannica

    Platinum minerals are usually highly disseminated in sulfide ores particularly the nickel mineral pentlandite (Ni Fe) 9 S 8. The most common platinum-group minerals include laurite RuS 2 irarsite (Ir Ru Rh Pt)AsS osmiridium (Ir Os) cooperite (PtS) and braggite (Pt Pd)S. The world s largest deposit is the Bushveld Complex of South Africa.

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  • 4 Ways to Identify Platinum and Silver JewelrywikiHow

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    2021-5-28 · Platinum is a very rare and expensive metal. Therefore all platinum jewelry will be marked to show authenticity. Look for the words "Platinum " "PLAT " or "PT" followed or preceded by the numbers "950" or "999." These numbers refer to the purity of the platinum

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  • How to Identify Platinum in Ore Deposits Sciencing

    Most PGEs originate in magnetic ore deposits. These formed as a result of magma cooling and crystallizing into sulfide globules. Magma formed various intrusions into shallow parts of the earths crust. 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. It can however corrode via halogens sulfur and cyanides.Geology