Uchucchacuaite
Appearance
Uchucchacuaite | |
---|---|
General | |
Category | Sulfosalt minerals |
Formula (repeating unit) | AgMnPb3Sb5S12 |
Strunz classification | 2.JB.40a |
Crystal system | Orthorhombic |
Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
Space group | Pmmm |
Unit cell | a = 12.67 Å, b = 19.32 Å c = 4.38 Å; Z = 4 |
Identification | |
Color | grey |
Luster | metallic |
Diaphaneity | opaque |
References | [1] |
Uchucchacuaite (AgMnPb3Sb5S12) is a rare sulfosalt mineral found in hydrothermal deposits.
It was first described in 1984 for an occurrence in the Uchucchacua Mine, Oyon Province, Lima Department, Peru and named for the mine.[1] It has also been reported from mines in Hokkaido, Japan.[1] It occurs with alabandite, galena, benavidesite, sphalerite, pyrite, pyrrhotite and arsenopyrite in the Peru deposit.[2]