Mineralogy Database

Foordite Mineral Data

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General Foordite Information

Help on Chemical  Formula: Chemical Formula: Sn++(Nb,Ta)2O6
Help on Composition: Composition: Molecular Weight = 444.54 gm
   Tantalum  20.35 %  Ta   24.85 % Ta2O5
   Niobium   31.35 %  Nb   44.85 % Nb2O5
   Tin       26.70 %  Sn   30.30 % SnO
   Oxygen    21.59 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: SnNb1.5Ta0.5O6
Help on Environment: Environment: Alluvial pebble originating from a highly differentiated granite pegmatite, formed under reducing conditions deficient in Fe, Mn, Na, Ca, and F
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: 15 km north-northwest of Lutsiro, near the Sebeya River, western Rwanda. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Eugene Edward Foord (1946-1998), American mineralogist with the U.S. Geological Survey, Denver, Colorado, USA, student of granite pegmatites.
Help on Name Pronunciation: Name Pronunciation: Foordite Say FOORDITE
Help on Synonym: Synonym: ICSD 202827
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