Galkhaite

Galkhaite
	Galkhaite crystals to 3 mm on matrix, Getchell Mine, Nevada.
General
Category	Sulfosalt minerals
Formula; (repeating unit)	(Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12
Strunz classification	2.GB.20
Crystal system	Cubic
Crystal class	Hextetrahedral (43m) ; H-M symbol: (4 3m)
Space group	I43m

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.[1][2][3][4]

References

http://www.handbookofmineralogy.org/pdfs/galkhaite.pdf Handbook of Mineralogy (original description by Gruzdev et al. 1972)
http://www.mindat.org/min-1643.html Mindat
http://webmineral.com/data/Galkhaite.shtml Webmineral
Arehart G. B., Chakurian A. M., Tretbar D. R., Christensen J. N., McInnes B. A., Donelick R. A. 2003: Evaluation of Radioisotope Dating of Carlin-Type Deposits in the Great Basin, Western North America, and Implications for Deposit Genesis. Economic Geology, 98, pp. 235-248;

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[1] ttp://www.handbookofmineralogy.org/pdfs/galkhaite.pdf Handbook of Mineralogy (original description by Gruzdev et al. 1972)

[2] ttp://www.mindat.org/min-1643.html Mindat

[3] ttp://webmineral.com/data/Galkhaite.shtml Webmineral

[4] Arehart G. B., Chakurian A. M., Tretbar D. R., Christensen J. N., McInnes B. A., Donelick R. A. 2003: Evaluation of Radioisotope Dating of Carlin-Type Deposits in the Great Basin, Western North America, and Implications for Deposit Genesis. Economic Geology, 98, pp. 235-248;