Mineralogy Database

Phosphofibrite Mineral Data

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General Phosphofibrite Information

Help on Chemical  Formula: Chemical Formula: KCuFe+++15(PO4)12(OH)12•12(H2O)
Help on Composition: Composition: Molecular Weight = 2,500.28 gm
   Potassium    1.56 %  K     1.88 % K2O
   Iron        33.50 %  Fe   47.90 % Fe2O3
   Copper       2.54 %  Cu    3.18 % CuO
   Phosphorus  14.87 %  P    34.06 % P2O5
   Hydrogen     1.45 %  H    12.97 % H2O
   Oxygen      46.07 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KCuFe3+15(PO4)12(OH)12•12(H2O)
Help on Environment: Environment: In a hydrothermal polymetallic barite-fluorite deposit.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: Clara mine, near Oberwolfach, Black Forest, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for phosphorus in the composition and its characteristic fibrous habit.
Help on Name Pronunciation: Name Pronunciation: Phosphofibrite + Pronunciation Say PHOSPHOFIBRITE