Mineralogy Database

Talc Mineral Data

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General Talc Information

Help on Chemical  Formula: Chemical Formula: Mg3Si4O10(OH)2
Help on Composition: Composition: Molecular Weight = 379.27 gm
   Magnesium  19.23 %  Mg   31.88 % MgO
   Silicon    29.62 %  Si   63.37 % SiO2
   Hydrogen    0.53 %  H     4.75 % H2O
   Oxygen     50.62 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg3Si4O10(OH)2
Help on Environment: Environment: Hydrothermal alteration of non-aluminous magnesian silicates.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1546
Help on Locality: Locality: Common world wide. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Arabic.
Help on Name Pronunciation: Name Pronunciation: Talc Say TALC
Help on Synonym: Synonym: Kerolite
  Magnesium Talc
  Steatite - massive