Mineralogy Database

Keyite Mineral Data

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General Keyite Information

Help on Chemical  Formula: Chemical Formula: Cu++3(Zn,Cu)4Cd2(AsO4)6•2(H2O)
Help on Composition: Composition: Molecular Weight = 1,520.19 gm
   Calcium     0.26 %  Ca    0.37 % CaO
   Manganese   0.72 %  Mn    1.04 % Mn2O3
   Zinc       14.19 %  Zn   17.67 % ZnO
   Cadmium    12.57 %  Cd   14.36 % CdO
   Copper     15.05 %  Cu   16.94 % Cu2O
   Arsenic    29.57 %  As   45.36 % As2O5
   Hydrogen    0.27 %  H     2.37 % H2O
   Oxygen     27.36 %  O
             ______        ______ 
             100.00 %       98.11 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu3.6Zn3.3Cd1.7Mn3+0.2Ca0.1(AsO4)6•2(H2O)
Help on Environment: Environment: Secondary mineral in the oxidized zone of a dolostone-hosted hydrothermal polymetallic ore deposit.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Tsumeb, Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Charles Locke Key (1935-), Canton, Connecticut, USA, American mineral dealer who furnished the first specimens.
Help on Name Pronunciation: Name Pronunciation: Keyite Say KEYITE
Help on Synonym: Synonym: ICSD 82482
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