Briartite
(repeating unit)Cu2(Fe,Zn)GeS4 IMA symbol Btt[1] Strunz classification 02.KA.10(02) Dana classification 2.9.2.3.(02) Crystal system Tetragonal Space group 07;10 Unit cell 297.46 ų Identification Colour Gray to gray blue; Iron-grey Twinning Polysynthetic Mohs scale hardness 3.5–4.5 Luster Metallic; Unpolished Diaphaneity Opaque Specific gravity 4.337 (Calculated) Density 4.337 g/cm3 (Calculated) Common impurities Ga, Sn
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]
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
- ^ 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.
- ^ "Briartite". www.mindat.org. Retrieved 2021-02-09.
- ^ "New Mineral Names" (PDF). Mineral Society of America. Archived (PDF) from the original on 2012-07-23. Retrieved 9 February 2021.
- ^ "Briartite" (PDF). Handbook of Mineralogy. Archived (PDF) from the original on 2011-07-09. Retrieved 9 February 2021.
- v
- t
- e
