Mineralogy Database

Niocalite Mineral Data

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General Niocalite Information

Help on Chemical Formula: Chemical Formula: Ca14Nb2(Si2O7)4O6F2
Help on Composition: Composition: Molecular Weight = 1,553.57 gm
   Calcium   36.12 %  Ca   50.53 % CaO
   Niobium   11.96 %  Nb   17.11 % Nb2O5
   Silicon   14.46 %  Si   30.94 % SiO2
   Oxygen    35.01 %  O
   Fluorine   2.45 %  F     2.45 % F
               -   %   F    -1.03 % -O=F2    
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca14Nb2(Si2O7)4O6F2
Help on Environment: Environment: In carbonatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1956
Help on Locality: Locality: Oka, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition (Niobium, Calcium).
Help on Name Pronunciation: Name Pronunciation: Niocalite + Pronunciation Say NIOCALITE
Help on Synonym: Synonym: ICSD 31269
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