Mineralogy Database

Matveevite Mineral Data

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General Matveevite Information

Help on Chemical Formula: Chemical Formula: KTiMn2Fe+++2(PO4)4(OH)3•15(H2O)
Help on Composition: Composition: Molecular Weight = 1,009.69 gm
   Potassium    3.87 %  K     4.66 % K2O
   Titanium     4.74 %  Ti    7.91 % TiO2
   Manganese   10.88 %  Mn   14.05 % MnO
   Iron        11.06 %  Fe   15.82 % Fe2O3
   Phosphorus  12.27 %  P    28.12 % P2O5
   Hydrogen     3.29 %  H    29.44 % H2O
   Oxygen      53.88 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KTiMn2+2Fe3+2(PO4)4(OH)3•15(H2O)
Help on Environment: Environment: The Mn end member in the series with paulkerrite. Decomposition product in granitic pegmatite. Matveevite (1991) discredited as equivalent to Mg-Al-bearing benyacarite.
Help on IMA Status: IMA Status: Discredited IMA 2006 - Approved IMA 1991
Help on Locality: Locality: Ilmenskih National Park, Ural Mountains, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1986 for K. K. Matveev (1875-1954).