Mineralogy Database

Molybdofornacite Mineral Data

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General Molybdofornacite Information

Help on Chemical Formula: Chemical Formula: Pb2Cu[(As,P)O4][(Mo,Cr)O4](OH)
Help on Composition: Composition: Molecular Weight = 790.12 gm
   Chromium     1.32 %  Cr    2.53 % CrO3
   Copper       8.04 %  Cu    9.05 % Cu2O
   Molybdenum   9.71 %  Mo   14.57 % MoO3
   Arsenic      8.53 %  As   13.09 % As2O5
   Phosphorus   0.78 %  P     1.80 % P2O5
   Hydrogen     0.13 %  H     1.14 % H2O
   Lead        52.45 %  Pb   56.50 % PbO
   Oxygen      19.03 %  O
              ______        ______ 
              100.00 %       98.68 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2Cu(AsO4)0.9(PO4)0.2MoO40.8CrO40.2(OH)
Help on Environment: Environment: Deep oxidation zone of a dolostone-hosted hydrothermal polymetallic ore deposit.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Tsumeb, Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its predominance of molybdenum and relation to fornacite.
Help on Name Pronunciation: Name Pronunciation: Molybdofornacite + Pronunciation Say MOLYBDOFORNACITE