Tiemannite Knowpia

Tiemannite
Tiemannite
General
Category	Selenide mineral
Formula; (repeating unit)	HgSe
IMA symbol	Tmn
Strunz classification	2.CB.05a
Dana classification	02.08.02.04
Crystal system	Isometric
Crystal class	Hextetrahedral (43m) ; H-M symbol: (4 3m)
Space group	F43m
Identification
Color	Steel-gray to black
Crystal habit	Massive and as euhedral crystals
Cleavage	none
Mohs scale hardness	2.5
Luster	Metallic
Streak	grayish black
Diaphaneity	opaque
Specific gravity	8.19–8.47
References

Tiemannite is a mineral, mercury selenide, formula HgSe. It occurs in hydrothermal veins associated with other selenides, or other mercury minerals such as cinnabar, and often with calcite. Discovered in 1855 in Germany, it is named after Johann Carl Wilhelm Tiemann (1848–1899).

References edit

^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
^ Tiemannite Mineral Data
^ Tiemannite: Tiemannite mineral information and data

Tiemannite from a micro-disseminated gold deposit in Qiongmo, Liu Jiajun, Zheng Minghua, Liu Jianming, Lu Wenquan, Journal of Chengdu Institute of Technology, vol. 23 (2), pages 21–28 (1996)
Timanite and onofrite in ores of Siberian mercury deposits, Vasil'yev V.I., Lavrent'yev Y.G., Doklady (Academy of Sciences of the USSR, Earth Sciences Section) vol. 222, Pages 159-162 (1975).

External links edit

Media related to Tiemannite at Wikimedia Commons

[1] Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.

[2] Tiemannite Mineral Data

[3] Tiemannite: Tiemannite mineral information and data

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Summary

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