| Gratonite | |
|---|---|
 Gratonite, Excelsior Mine,
Cerro de Pasco, Peru, the
type locality. 1.7 x 1.6 x 1.5 cm. | |
| General | |
| Category | Sulfosalt minerals |
|
Formula (repeating unit) | Pb9As4S15 |
| IMA symbol | Gtn [1] |
| Strunz classification | 2.JB.55 |
| Crystal system | Trigonal |
| Crystal class | Ditrigonal pyramidal (3m) (same H-M symbol) |
| Space group | R3m |
Gratonite is a lead-arsenic sulfosalt mineral, with the chemical composition Pb9As4S15. Gratonite was discovered in 1939 at the Excelsior Mine, Cerro de Pasco, Peru. It is named in honor of geologist L. C. Graton (1880–1970), who had a long-standing association with the Cerro de Pasco mines.
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.
 | This article about a specific sulfide mineral is a stub. You can help Wikipedia by expanding it. |
| Gratonite | |
|---|---|
|
Gratonite, Excelsior Mine,
Cerro de Pasco, Peru, the
type locality. 1.7 x 1.6 x 1.5 cm. | |
| General | |
| Category | Sulfosalt minerals |
|
Formula (repeating unit) | Pb9As4S15 |
| IMA symbol | Gtn [1] |
| Strunz classification | 2.JB.55 |
| Crystal system | Trigonal |
| Crystal class | Ditrigonal pyramidal (3m) (same H-M symbol) |
| Space group | R3m |
Gratonite is a lead-arsenic sulfosalt mineral, with the chemical composition Pb9As4S15. Gratonite was discovered in 1939 at the Excelsior Mine, Cerro de Pasco, Peru. It is named in honor of geologist L. C. Graton (1880–1970), who had a long-standing association with the Cerro de Pasco mines.
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.
|
| This article about a specific sulfide mineral is a stub. You can help Wikipedia by expanding it. |