Chemistry:Sulfarsenide mineral
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The sulfarsenide minerals are a subgroup of the sulfide minerals which include arsenic replacing sulfur as an anion in the formula.[1] Antimony and bismuth may occur with or in place of the arsenic as in ullmannite. The chemical formula of a sulfarsenide looks like a sulfosalt, however the structures are distinctly different. In sulfosalts the arsenic replaces a metal ion.[1] The sulfarsenides are grouped with the sulfides in both the Dana and Strunz mineral classification systems.[2][3]
- Arsenopyrite group:
- Arsenopyrite FeAsS
- Glaucodot (Co,Fe)AsS
- Gudmundite FeSbS
- Lautite CuAsS
- Alloclasite (Co,Fe)AsS
- Cobaltite group
- Cobaltite CoAsS
- Gersdorffite NiAsS
- Ullmannite (Ni,Cu,Fe)(Sb,As,Bi)S
References
- ↑ 1.0 1.1 1.2 Klein, Cornelis and Cornelius S. Hurlbut, 1985, Manual of Mineralogy, 20th ed., John Wiley and Sons, New York, p. 290 ISBN:0-471-80580-7
- ↑ http://webmineral.com/dana/II-2.shtml#2.1 Webmineral Dana
- ↑ http://webmineral.com/strunz/II.shtml Webmineral Strunz
- ↑ http://rruff.info/about/downloads/AM93_1183.pdf Hexiong Yang and Robert T. Downs, Crystal structure of glaucodot, (Co,Fe)AsS, and its relationships to marcasite and arsenopyrite, American Mineralogist, Volume 93, pages 1183–1186, 2008
- ↑ Palache, C., H. Berman, and C. Frondel (1944) Dana’s system of mineralogy, (7th edition), v. I, p. 296
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