IMA mineral species
Geffroyite
(Cu,Fe,Ag)₉(Se,S)₈
Sulfide mineral.
Properties
| Chemical formula | (Cu,Fe,Ag)₉(Se,S)₈ |
|---|---|
| Elements | Cu, Fe, Ag, Se, S |
| Crystal system | Cubic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Gef |
| Nickel–Strunz class | 2.BB.15 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Learn more
- Geffroyite on Mindat.org
- Wikidata item Q3759213 (source of this page's data – you can correct it there)
IMA mineral species
Cubic