Mineralogy Database

Hennomartinite Mineral Data

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General Hennomartinite Information

Help on Chemical  Formula: Chemical Formula: SrMn+++2Si2O7(OH)2•(H2O)
Help on Composition: Composition: Molecular Weight = 417.69 gm
   Strontium  20.98 %  Sr   24.81 % SrO
   Manganese  26.31 %  Mn   37.80 % Mn2O3
   Silicon    13.45 %  Si   28.77 % SiO2
   Hydrogen    0.97 %  H     8.63 % H2O
   Oxygen     38.30 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: SrMn3+2Si2O7(OH)2•(H2O)
Help on Environment: Environment: Overgrowing sugilite in serandite-pectolite rock. Isotructural with lawsonite.
Help on IMA Status: IMA Status: Approved IMA 1993
Help on Locality: Locality: Wessels mine, Kalahari manganese field, South Africa. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Henno Martin, German geologist who escaped to South Africa from Nazi Germany.
Help on Name Pronunciation: Name Pronunciation: Hennomartinite + Pronunciation Say HENNOMARTINITE
Help on Synonym: Synonym: ICSD 83667
  IMA1992-033