Mineralogy Database

Augite Mineral Data

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General Augite Information

Help on Chemical  Formula: Chemical Formula: (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
Help on Composition: Composition: Molecular Weight = 236.35 gm
   Sodium      0.97 %  Na    1.31 % Na2O
   Calcium    15.26 %  Ca   21.35 % CaO
   Magnesium   9.26 %  Mg   15.35 % MgO
   Titanium    2.03 %  Ti    3.38 % TiO2
   Aluminum    4.57 %  Al    8.63 % Al2O3
   Iron        4.73 %  Fe    6.08 % FeO
   Silicon    22.58 %  Si   48.30 % SiO2
   Oxygen     40.62 %  O
             ______        ______ 
             100.00 %      104.40 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.9Na0.1Mg0.9Fe2+0.2Al0.4Ti0.1Si1.9O6
Help on Environment: Environment: Basic igneous and metamorphic rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1792
Help on Locality: Locality: Common world wide. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek auge - "luster."
Help on Name Pronunciation: Name Pronunciation: Augite Say AUGITE
Help on Synonym: Synonym: Fassaite
  ICSD 9257
  PDF 24-203