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Comments: Lustrous, metallic gray columnar crystals of enargite with minor quartz.
Location: Quiruvilca, La Libertad Dept., Peru.
Scale: 4.2x2x2.3 cm.
© Isaias Casanova / IC Minerals
Enargite: Cu3AsS4 Famatinite: Cu3SbS4
Comments: Violet metallic crystalline famatinite with black massive enargite.
Location: Cerro de Pasco, Pasco, Peru.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species