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Proustite, Dolores Mine, Chanarcillo, Chile.

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A. E. Seaman Mineral Museum Collection

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Proustite, Dolores Mine, Chanarcillo, Chile. Miners called proustite and related minerals were called “ruby silver” by miners because of their intense color. Like many silver minerals, proustite is light sensitive and continued exposure to light will darken it to black, making this specimen next to impossible to exhibit. Specimen 10 cm wide. Photo by G. Robinson. (DM 23880)

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