Mineralogy Database

Almandine Mineral Data

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General Almandine Information

Help on Chemical Formula: Chemical Formula: Fe++3Al2(SiO4)3
Help on Composition: Composition: Molecular Weight = 497.75 gm
   Aluminum  10.84 %  Al   20.48 % Al2O3
   Iron      33.66 %  Fe   43.30 % FeO
   Silicon   16.93 %  Si   36.21 % SiO2
   Oxygen    38.57 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+3Al2(SiO4)3
Help on Environment: Environment: Metamorphic and pegmatitic rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) Prehistoric
Help on Locality: Locality: Alabanda in Asia Minor. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Almandine + Pronunciation Say ALMANDINE
Help on Synonym: Synonym: Almandite
  ICSD 28030
  PDF 41-1423