Mineralogy Database

Ankerite Mineral Data

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General Ankerite Information

Help on Chemical  Formula: Chemical Formula: Ca(Fe++,Mg,Mn)(CO3)2
Help on Composition: Composition: Molecular Weight = 206.39 gm
   Calcium    19.42 %  Ca   27.17 % CaO
   Magnesium   3.53 %  Mg    5.86 % MgO
   Manganese   2.66 %  Mn    3.44 % MnO
   Iron       16.24 %  Fe   20.89 % FeO
   Carbon     11.64 %  C    42.65 % CO2
   Oxygen     46.51 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaFe2+0.6Mg0.3Mn2+0.1(CO3)2
Help on Environment: Environment: Common in ore-bearing rocks as a rock forming mineral (gangue). High Fe species are found in iron ores.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1825
Help on Locality: Locality: Styrian Erzberg, Eisenerz, Styria, Austria Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the Styrian (Austrian) mineralogist, Mathias Joseph Anker (1771-1843).
Help on Name Pronunciation: Name Pronunciation: Ankerite Say ANKERITE
Help on Synonym: Synonym: Brown Spar
  ICSD 100417
  PDF 41-586