Miargyrite

Unknown Owner

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A very rich, old-time and uncommon cabinet silver ore specimen from the Kelly Mine of Randsburg, California. This sparkly, gray metallic piece is extremely miargyrite-rich silver ore. Miargyrite is a rare silver, antimony sulfosalt and this is an uncommonly fine specimen. Hefty at 863 grams or 1.9 pounds. Ex. Cal Tech Collection.