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Comments: Partial crystal of chalcostibite. The crystal is partially altered to blue azurite and green malachite.
Location: Gar El Anz, Morocco.
Scale: 3 x 1.8 cm.
© John Veevaert
Comments: Dark gray crystals of chalcostibite on white quartz matrix.
Location: Boldut mine, Cavnic Maramures, Rumania.
Scale: 7 x 7 x 3.5 cm.
© Fabre Minerals