Mineralogy Database

Thalfenisite Mineral Data

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General Thalfenisite Information

Help on Chemical  Formula: Chemical Formula: Tl6(Fe,Ni,Cu)25S26Cl
Help on Composition: Composition: Molecular Weight = 3,510.71 gm
   Thallium  34.93 %  Tl
   Iron      31.82 %  Fe
   Copper     1.81 %  Cu
   Nickel     6.69 %  Ni
   Sulfur    23.75 %  S
   Chlorine   1.01 %  Cl
            100.00 % 
Help on Empirical Formula: Empirical Formula: Tl6Fe2+20Ni4CuS26Cl
Help on Environment: Environment: In pentlandite-galena-chalcopyrite ores, localized at the contact of chalcopyrite and galena and included in pentlandite.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Oktyabr mine, Norilsk, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition (Tl, Fe, Ni, S).
Help on Name Pronunciation: Name Pronunciation: Thalfenisite + Pronunciation Say THALFENISITE