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- WangNyang Museum
- 2F W’s mineral collection
- Covellite
Covellite
Locality:Leonard Mine, Butte, Montana,USA
(https://www.mindat.org/loc-3882.html)
Formula:CuS"Extended" formula is Cu+4Cu2+2(S2)2S2 (Goble, 1985).
Colour:Indigo-blue or darker, inclining towards blue-black, often iridescent with purplish, deep red, and brassy-yellow reflections.
Lustre:Sub-Metallic
Hardness:1½ - 2
Specific Gravity:4.6 - 4.76
Crystal System:Hexagonal
