Mineralogy Database

Laforetite Mineral Data

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General Laforetite Information

Help on Chemical  Formula: Chemical Formula: AgInS2
Help on Composition: Composition: Molecular Weight = 286.82 gm
   Indium  40.03 %  In
   Silver  37.61 %  Ag
   Sulfur  22.36 %  S
          100.00 % 
Help on Empirical Formula: Empirical Formula: AgInS2
Help on Environment: Environment: Breccia vein sample from the mine dumps. Microscopic inclusions in galena.
Help on IMA Status: IMA Status: Approved IMA 1995 (Dana # Added)
Help on Locality: Locality: The disused Montgros mine (Pinols claim), near the hamlet La Boriette, about 10 km SW of Langeac, Haute-Loire, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Claude P. Laforet (1936-) a metallographer at the Bureau de Recherches Geologiques et Minieres, who first observed the mineral from the Montgros mine.
Help on Synonym: Synonym: IMA1995-006