Mineralogy Database

Magnesiofoitite Mineral Data

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General Magnesiofoitite Information

Help on Chemical  Formula: Chemical Formula: [ ](Mg2Al)Al6(Si6O18)(BO3)3(OH)4
Help on Composition: Composition: Molecular Weight = 937.08 gm
   Magnesium   3.89 %  Mg    6.45 % MgO
   Aluminum   21.31 %  Al   40.26 % Al2O3
   Silicon    17.98 %  Si   38.47 % SiO2
   Boron       3.46 %  B    11.14 % B2O3
   Hydrogen    0.43 %  H     3.84 % H2O
   Oxygen     52.93 %  O
             ______        ______ 
             100.00 %      100.17 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg1.5Al7.4Si6O18(BO3)3(OH)4
Help on Environment: Environment: Found in a hydrothermally altered quartz-phenocryst-bearing porphyry. The Mg analogue of foitite.
Help on IMA Status: IMA Status: Approved IMA 2001 (Dana # Added)
Help on Locality: Locality: Kyonosawa, Mitomi-mura, Higashi-Yamanashi-gun, Yamanashi-ken Prefecture, Honshu, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name recalls its composition and relationship to foitite.
Help on Synonym: Synonym: IMA1998-037