Sperrylite

Unknown Owner

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This locality has arguably produced the finest sperrylite specimens around of this platinum species. These crystals are huge, with the largest being 1.3 cm across. All large sperrylites have some cracking, and this is typical of that efffect, although they are not so distracting in person as in the photo. This rare platinum arsenide has mirror bright luster, is silvery-gray, and has a high specific gravity, and would be far more expensive if the crystals were on matrix. As is, it is an exceptional thumbnail with a lot of drama, as the one is perched upon another crystal.