Mineralogy Database

Achavalite Mineral Data

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General Achavalite Information

Help on Chemical  Formula: Chemical Formula: FeSe
Help on Composition: Composition: Molecular Weight = 134.81 gm
   Iron      41.43 %  Fe
   Selenium  58.57 %  Se
            100.00 % 
Help on Empirical Formula: Empirical Formula: Fe2+Se
Help on Environment: Environment: Same as synthetic delta-Fe7S8 with niccolite structure type. Needs additional work.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1939 (Dana # Added)
Help on Locality: Locality: Cerro de Cacheuta, Mendoza, Argentina. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for L. Achaval.
Help on Synonym: Synonym: ICSD 29308
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