Mineralogy Database

Ustarasite Mineral Data

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General Ustarasite Information

Help on Chemical  Formula: Chemical Formula: Pb(Bi,Sb)6S10
Help on Composition: Composition: Molecular Weight = 1,738.13 gm
   Bismuth   66.13 %  Bi
   Antimony   3.50 %  Sb
   Lead      11.92 %  Pb
   Sulfur    18.45 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: PbBi5.5Sb0.5S10
Help on Environment: Environment: In quartz-bismuthinite veins.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: Ustarasaisk deposit, western Tian-Shan, Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Ustarasite + Pronunciation Say USTARASITE