Briartite

Briartite is an opaque iron-grey metallic sulfide mineral, Cu2(Zn,Fe)GeS4 with traces of Ga and Sn, found as inclusions in other germanium-gallium-bearing sulfides.[2]

Briartite
General
CategoryMineral
Formula
(repeating unit)
Cu2(Fe,Zn)GeS4
IMA symbolBtt[1]
Strunz classification02.KA.10(02)
Dana classification2.9.2.3.(02)
Crystal systemTetragonal
Space group07;10
Unit cell297.46 ų
Identification
ColourGray to gray blue; Iron-grey
TwinningPolysynthetic
Mohs scale hardness3½ - 4½
LusterMetallic; Unpolished
DiaphaneityOpaque
Specific gravity4.337 (Calculated)
Density4.337 g/cm3 (Calculated)
Common impuritiesGa, Sn

It was discovered at the Prince Léopold Mine, Kipushi, Shaba, Congo (Léopoldville) in 1965 by Francotte and others, and named for Gaston Briart who had studied formations at Kipushi.[3]

Briartite is also found in Namibia, Greece, and Spain.[4]

See also

References

  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. "Briartite". www.mindat.org. Retrieved 2021-02-09.
  3. "New Mineral Names" (PDF). Mineral Society of America. Archived (PDF) from the original on 2012-07-23. Retrieved 9 February 2021.
  4. "Briartite" (PDF). Handbook of Mineralogy. Archived (PDF) from the original on 2011-07-09. Retrieved 9 February 2021.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.