Mineralogy Database

Brumadoite Mineral Data

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General Brumadoite Information

Help on Chemical Formula: Chemical Formula: Cu3(TeO4)(OH)4•5H2O
Help on Composition: Composition: Molecular Weight = 535.15 gm
   Calcium     0.07 %  Ca    0.10 % CaO
   Copper     34.44 %  Cu   43.11 % CuO
   Silicon     0.26 %  Si    0.56 % SiO2
   Tellurium  22.17 %  Te   27.74 % TeO2
   Hydrogen    2.64 %  H    23.56 % H2O
   Lead        1.55 %  Pb    1.67 % PbO
   Oxygen     38.87 %  O
             ______        ______ 
             100.00 %       96.74 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2.9Pb0.04Ca0.01Te0.93Si0.05O4(OH)4•5(H2O)
Help on IMA Status: IMA Status: Approved IMA 2008 (Dana # Added)
Help on Locality: Locality: Pedra Preta mine, Serra das eguas, Brumado, Bahia, Brazil Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2008-028