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Acanthite


Acanthite : Ag2S

Photo Copyright © David K. Joyce  - This image is copyrighted. Unauthorized reproduction prohibited.
For the Cobalt mining camp, these are relatively well formed cube-octahedra formed in calcite and exposed by acid etching. The top crystal is 10mm across. Technically, these crystals are a parallel growth and so are really one large crystal! Specimen is 3.1x2,3x2.2cm D.K.Joyce collection.

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