Kalpana Kalpana (Editor)

Galkhaite

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Category
  
Sulfosalt minerals

Crystal system
  
Cubic

Strunz classification
  
2.GB.20

Space group
  
I43m

Galkhaite

Formula (repeating unit)
  
(Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12

Crystal class
  
Hextetrahedral (43m) H-M symbol: (4 3m)


Galkhaite is a rare and chemically complex sulfosalt mineral from a group of natural thioarsenites. Its formula is (Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12, making the mineral the only known natural Cs-Hg and Cs-As phase. It occurs in Carlin-type hydrothermal deposits.

References

Galkhaite Wikipedia
(Text) CC BY-SA