Mineralogy Database

Krohnkite Mineral Data

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General Krohnkite Information

Help on Chemical  Formula: Chemical Formula: Na2Cu(SO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 337.68 gm
   Sodium    13.62 %  Na   18.35 % Na2O
   Copper    18.82 %  Cu   21.19 % Cu2O
   Hydrogen   1.19 %  H    10.67 % H2O
   Sulfur    18.99 %  S    47.42 % SO3
   Oxygen    47.38 %  O
            ______        ______ 
            100.00 %       97.63 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Cu(SO4)2•2(H2O)
Help on Environment: Environment: Secondary mineral in copper-bearing sulfide deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1876
Help on Locality: Locality: Chuquicamata, Calama, Antofagļæ½sta Province, Chile. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after B. Kroehnke, who was the first person to analyze it.
Help on Synonym: Synonym: Kroehnkite