Mineralogy Database

Segnitite Mineral Data

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General Segnitite Information

Help on Chemical Formula: Chemical Formula: PbFe+++3H(AsO4)2(OH)6
Help on Composition: Composition: Molecular Weight = 755.63 gm
   Iron      22.17 %  Fe   31.70 % Fe2O3
   Arsenic   19.83 %  As   30.42 % As2O5
   Hydrogen   0.93 %  H     8.34 % H2O
   Lead      27.42 %  Pb   29.54 % PbO
   Oxygen    29.64 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbFe3+3H(AsO4)2(OH)6
Help on Environment: Environment: Oxidized zone of a Pb-Zn orebody.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: Broken Hill, New South Wales, and at Coppin Pool, about 41 km east-southeast of Mt. Tom Price, Western Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for E. Ralph Segnit (1923-1999), mineralogist and petrologist, University of Adelaide, Adelaide, Australia, for his contributions to Australian mineralogy.
Help on Synonym: Synonym: ICSD 40681
  IMA1991-017
  PDF 45-1392