Mineralogy Database

Vivianite Mineral Data

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General Vivianite Information

Help on Chemical  Formula: Chemical Formula: Fe++3(PO4)2•8(H2O)
Help on Composition: Composition: Molecular Weight = 501.61 gm
   Iron        33.40 %  Fe   42.97 % FeO
   Phosphorus  12.35 %  P    28.30 % P2O5
   Hydrogen     3.22 %  H    28.73 % H2O
   Oxygen      51.03 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+3(PO4)2•8(H2O)
Help on Environment: Environment: Common secondary mineral in the gossan of metallic ore deposits, pegmatites, sedimentary authigenic mineralization in association with organic materials.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1817
Help on Locality: Locality: St. Agnes, Cornwall, England Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the English mineralogist, J. G. Vivian.
Help on Name Pronunciation: Name Pronunciation: Vivianite + Pronunciation Say VIVIANITE
Help on Synonym: Synonym: Blue Iron Earth
  ICSD 200703
  PDF 30-662