Gananite
| Gananite | ||
|---|---|---|
| General | ||
| Category | Specific gravity 8.928 calculated | |
| Optical properties | Isotropic | |
| Birefringence | N/A | |
| Pleochroism | Non-Pleochroic | |
| References | [2][3] | |
Gananite (
birefringent.[5] Its color in plane-polarized light is blackish-brown, and it does not show pleochroism
.
Discovery and occurrence
It was first described in 1984 for an occurrence in the Laikeng Mining District,
Gan County, Ganzhou Prefecture, Jiangxi Province, China.[4] The name is given for its occurrence in the Southern Ganzhou (Gannan) region of China.[2] In the Gannan occurrence, the only reported location, it occurs in quartz veins in association with wolframite, native bismuth, bismuthinite, pyrite and chalcopyrite.[2]
Uses
Despite the obscurity of gananite and its very limited use, it is sometimes used in China as a bismuth ore.
References
- S2CID 235729616.
- ^ a b c "Gananite", Mineral Data Publishing, 2005, accessed 16 December 2010.
- ^ Gananite Mineral Data, accessed 16 December 2010.
- ^ a b Gananite, MinDat.org, accessed 16 December 2010.
- ^ Jambor, J. L., Burke, E. A., Ercit, T. S., Grice, J. D. (1988) New mineral names. American Mineralogist, 73, 1492-1499.