Mineralogy Database

Ferrowyllieite Mineral Data

Search Webmineral :
  

General Ferrowyllieite Information

Help on Chemical Formula: Chemical Formula: (Na,Ca,Mn)(Fe++,Mn)(Fe++,Fe+++,Mg)Al(PO4)3
Help on Composition: Composition: Molecular Weight = 478.55 gm
   Sodium       6.25 %  Na    8.42 % Na2O
   Calcium      1.67 %  Ca    2.34 % CaO
   Magnesium    1.02 %  Mg    1.68 % MgO
   Manganese    3.44 %  Mn    4.45 % MnO
   Aluminum     4.51 %  Al    8.52 % Al2O3
   Iron        23.57 %  Fe   30.03 % FeO /  0.33 % Fe2O3
   Phosphorus  19.42 %  P    44.49 % P2O5
   Oxygen      40.12 %  O
              ______        ______ 
              100.00 %      100.27 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na1.3Mn2+0.3Ca0.2Fe2+2Al0.8Mg0.2Fe3+0.02(PO4)3
Help on Environment: Environment: Primary phosphate in zoned granite pegmatites. Forms a series with wyllieite and with rosemaryite.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Victory mine, 4 km northeast of Custer, Custer County, South Dakota, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Dominant ferrous iron and relationship to wyllieite.
Help on Name Pronunciation: Name Pronunciation: Ferrowyllieite + Pronunciation Say FERROWYLLIEITE