Mineralogy Database

Chalcocite Mineral Data

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General Chalcocite Information

Help on Chemical  Formula: Chemical Formula: Cu2S
Help on Composition: Composition: Molecular Weight = 159.16 gm
   Copper  79.85 %  Cu
   Sulfur  20.15 %  S
          100.00 % 
Help on Empirical Formula: Empirical Formula: Cu2S
Help on Environment: Environment: Secondary mineral in or near the oxidized zone of copper sulfide deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1832
Help on Locality: Locality: Cornwall, England and Butte, Montana. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, meaning chalkos, "copper".
Help on Name Pronunciation: Name Pronunciation: Chalcocite + Pronunciation Say CHALCOCITE
Help on Synonym: Synonym: Cocinerite - mixture with silver