Aktashite

Aktashite
	Gray aktashite is richly dispersed on matrix
General
Category	Sulfosalt
Formula; (repeating unit)	Cu6Hg3As4S12
Strunz classification	2.GA.30
Crystal system	Trigonal
Crystal class	Pyramidal (3) ; H-M symbol: (3)
Space group	R3
Identification
Formula mass	1667.51 g/mol
References	[1][2]

Aktashite is a rare arsenic sulfosalt mineral with formula Cu₆Hg₃As₄S₁₂. It is a copper mercury-bearing sulfosalt and is the only sulfosalt mineral with essential Cu and Hg yet known. It is of hydrothermal origin. It was published without approval of the IMA-CNMNC, but recognized as valid species by the IMA-CNMNC Sulfosalts Subcommittee (2008).[1][2][3][4][5]

References

http://www.mindat.org/min-74.html Mindat
http://www.handbookofmineralogy.org/pdfs/aktashite.pdf Handbook of Mineralogy
Fleischer, Michael (1973). "New Mineral Names" (PDF). American Mineralogist. 58: 562.
Fleischer, Michael (1971). "New Mineral Names" (PDF). American Mineralogist. 56: 358–359.
Gruzdev, V. S.; Chernitsova, N. M.; Shumkova, N. G. (1972). "Aktashite, Cu₆Hg₃As₄S₁₂, new data". Doklady Akademii Nauk SSSR (in Russian). 206: 694–697.

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[Mindat-1] ttp://www.mindat.org/min-74.html Mindat

[HBM-2] ttp://www.handbookofmineralogy.org/pdfs/aktashite.pdf Handbook of Mineralogy

[3] Fleischer, Michael (1973). "New Mineral Names" (PDF). American Mineralogist. 58: 562.

[4] Fleischer, Michael (1971). "New Mineral Names" (PDF). American Mineralogist. 56: 358–359.

[5] Gruzdev, V. S.; Chernitsova, N. M.; Shumkova, N. G. (1972). "Aktashite, Cu₆Hg₃As₄S₁₂, new data". Doklady Akademii Nauk SSSR (in Russian). 206: 694–697.