Mineralogy Database

Axinite-(Mg) Mineral Data

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General Axinite-(Mg) Information

Help on Chemical Formula: Chemical Formula: Ca2MgAl2BO3Si4O12(OH)
Help on Composition: Composition: Molecular Weight = 538.57 gm
   Calcium    14.88 %  Ca   20.82 % CaO
   Magnesium   4.51 %  Mg    7.48 % MgO
   Aluminum   10.02 %  Al   18.93 % Al2O3
   Silicon    20.86 %  Si   44.62 % SiO2
   Boron       2.01 %  B     6.46 % B2O3
   Hydrogen    0.19 %  H     1.67 % H2O
   Oxygen     47.53 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2MgAl2(BO3)Si4O12(OH)
Help on Environment: Environment: Contact metamorphic, hydrothermal, and alpine vein rocks.
Help on IMA Status: IMA Status: Approved IMA 1975
Help on Locality: Locality: Tanzania. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek acine - "axe" in allusion to the acute shape of typical crystals and the Greek, "Magnesia" a district in Thessaly in reference to the Mg in the chemical formula.
Help on Name Pronunciation: Name Pronunciation: Axinite-(Mg) Say AXINITE-(MG)
Help on Synonym: Synonym: Magnesio-axinite - Renamed Axinite-(Mg) by Mineralogical Record v39 (2008), 131