Mineralogy Database

Yimengite Mineral Data

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General Yimengite Information

Help on Chemical Formula: Chemical Formula: K(Cr,Ti,Fe,Mg)12O19
Help on Composition: Composition: Molecular Weight = 837.35 gm
   Potassium   4.20 %  K     5.06 % K2O
   Barium      1.64 %  Ba    1.83 % BaO
   Magnesium   4.06 %  Mg    6.74 % MgO
   Titanium   20.01 %  Ti   33.39 % TiO2
   Aluminum    2.26 %  Al    4.26 % Al2O3
   Chromium   29.19 %  Cr   42.66 % Cr2O3
   Iron        2.00 %  Fe    2.86 % Fe2O3
   Silicon     0.34 %  Si    0.72 % SiO2
   Oxygen     36.30 %  O
             ______        ______ 
             100.00 %       97.52 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.9Ba0.1Cr4.7Ti3.5Mg1.4Al0.7Fe3+0.3Si0.1O19
Help on Environment: Environment: Metasomatic alteration product of chromian spinel in kimberlites.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Yimeng Mountain area, Shandong Province, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Yimengite + Pronunciation Say YIMENGITE