Mineralogy Database

Nagashimalite Mineral Data

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General Nagashimalite Information

Help on Chemical  Formula: Chemical Formula: Ba4(V+++,Ti)4Si8B2O27Cl(O,OH)2
Help on Composition: Composition: Molecular Weight = 1,496.26 gm
   Barium    36.71 %  Ba   40.99 % BaO
   Titanium   3.20 %  Ti    5.34 % TiO2
   Vanadium  10.21 %  V    15.03 % V2O3
   Silicon   15.02 %  Si   32.13 % SiO2
   Boron      1.44 %  B     4.65 % B2O3
   Hydrogen   0.03 %  H     0.30 % H2O
   Chlorine   2.37 %  Cl    2.37 % Cl
               -   %   Cl   -0.53 % -O=Cl2   
   Oxygen    31.01 %  O
            ______        ______ 
            100.00 %      100.27 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba4V3+3TiSi8B2O28.5Cl(OH)0.5
Help on Environment: Environment: In fissures cutting massive rhodonite ore in a bedded manganese deposit.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Mogurazawa mine, Honshu, Kiryu, Gumma Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Otokichi Nagashima (1890{1969), pioneer Japanese amateur mineralogist,
Help on Name Pronunciation: Name Pronunciation: Nagashimalite + Pronunciation Say NAGASHIMALITE
Help on Synonym: Synonym: ICSD 201047
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