how is platinum mined and extracted

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  • Platinum group - Wikipedia, the free encyclopedia

    Significant quantities of the three light platinum group metalsruthenium, rhodium and palladiumare ...

  • Platinum Ores | Article about Platinum Ores by The Free Dictionary

    Platinum Ores natural mineral formations containing platinum group metals (platinum, palladium, ...

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  • Outline of mining - Wikipedia, the free encyclopedia

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