Mineralogy Database

Chalcothallite Mineral Data

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General Chalcothallite Information

Help on Chemical  Formula: Chemical Formula: (Cu,Fe)6Tl2SbS4
Help on Composition: Composition: Molecular Weight = 1,016.96 gm
   Thallium  40.19 %  Tl
   Iron      16.47 %  Fe
   Copper    18.75 %  Cu
   Antimony  11.97 %  Sb
   Sulfur    12.61 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu3Fe2+3Tl2SbS4
Help on Environment: Environment: In ussingite veins cutting poikilitic sodalite crystals.
Help on IMA Status: IMA Status: Approved IMA 1967
Help on Locality: Locality: Near Taseq Lake, Ilimaussaq intrusion, Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition (Cu, Tl).
Help on Synonym: Synonym: ICSD 100476
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