Mineralogy Database

Karupmollerite-Ca Mineral Data

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General Karupmollerite-Ca Information

Help on Chemical Formula: Chemical Formula: (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•7(H2O)
Help on Composition: Composition: Molecular Weight = 1,211.35 gm
   Potassium   1.42 %  K     1.71 % K2O
   Barium      0.23 %  Ba    0.25 % BaO
   Sodium      1.59 %  Na    2.15 % Na2O
   Strontium   0.07 %  Sr    0.09 % SrO
   Calcium     4.23 %  Ca    5.93 % CaO
   Titanium    5.06 %  Ti    8.44 % TiO2
   Manganese   0.23 %  Mn    0.29 % MnO
   Niobium    20.71 %  Nb   29.62 % Nb2O5
   Aluminum    0.13 %  Al    0.25 % Al2O3
   Zinc        0.05 %  Zn    0.07 % ZnO
   Iron        0.32 %  Fe    0.46 % Fe2O3
   Silicon    18.48 %  Si   39.53 % SiO2
   Hydrogen    1.25 %  H    11.21 % H2O
   Oxygen     46.21 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.84Ca0.64K0.44Ba0.02Sr0.01Ca0.64Mn2+0.05Zn0.01Nb2.7Ti1.28Fe3+0.07Si7.97Al0.06O24.09 OH1.23O2.75�6.92(H2O)
Help on Environment: Environment: Found replacing epistolite which was derived from vuonnemite. (labuntsovite group; structure refined)
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Ilimaussaq alkaline complex, South Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Svend Karup-Moller (1936-), Danish mineralogist.
Help on Synonym: Synonym: IMA2001-028