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M674 - Argyrodite $ 450 Himmelsfurst Mine, Freiberg, Saxony, Germany miniature - 3.5 x 2.3 x 1.5 cm Dark, slightly irridescent blue Argyrodite over Pyrite. Ex. Philadelphia Academy and William Vaux collections. Rare, historic Argyrodite specimen. Argyrodite is one the rarest of the silver species, a germanium containing silver sulfide. ©2010-2018 Marin Mineral |