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Summary Of: Platinum group
Metallic iridium is found with platinum and other platinum group metals in alluvial deposits... is generally found in ores with the other platinum group metals in the Ural Mountains and in North and South America... The production of pure platinum group metals normally starts from residues of the production of other metals with a mixture of... Platinum group metals in Africa... Platinum group metals in Africa... Encyclodia Page On: Platinum group
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