siserskite

mineral

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Last updated

July 13, 2026

Quick Summary

Siserskite is a mineral composed of a natural alloy of osmium and iridium, with iridium content typically ranging from 20 to 50 percent. It is a rare mineral, and its name originates from the Syssertsk region in the Sverdlovsk Oblast of Russia. Siserskite is a type of platinum-group element mineral, often found alongside other precious metals.1

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iridosmine
…osmium than iridium are called siserskite. Both iridosmine and siserskite crystallize in the hexagonal system. For detailed properties, see native element (table).
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…osmium than iridium are called siserskite. Both iridosmine and siserskite crystallize in the hexagonal system. For detailed properties, see native element (table).
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rhodium
5 percent in siserskite. Rhodium occurs in nature in association with the other platinum metals, and its separation and refinement form part of the overall metallurgical processing of the group. Rhodium is generally obtained commercially as a by-product of the extraction of nickel and copper from their ores.
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5 percent in siserskite. Rhodium occurs in nature in association with the other platinum metals, and its separation and refinement form part of the overall metallurgical processing of the group. Rhodium is generally obtained commercially as a by-product of the extraction of nickel and copper from their ores.
Read More