Mineralogy Database

Melanothallite Mineral Data

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General Melanothallite Information

Help on Chemical  Formula: Chemical Formula: Cu2OCl2
Help on Composition: Composition: Molecular Weight = 214.00 gm
   Copper    59.39 %  Cu   74.34 % CuO
   Chlorine  33.13 %  Cl   33.13 % Cl
               -   %   Cl   -7.48 % -O=Cl2   
   Oxygen     7.48 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2OCl2
Help on Environment: Environment: Sublimed on crater walls formed in 1868 and 1906.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1870
Help on Locality: Locality: Vesuvius, Campania, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for black and a young shoot, for the mineral�s property of turning green on exposure.
Help on Name Pronunciation: Name Pronunciation: Melanothallite + Pronunciation Say MELANOTHALLITE
Help on Synonym: Synonym: ICSD 1055
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