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Uchucchacuaite

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

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. It has also been reported from mines in Hokkaido, Japan. It occurs with alabandite, galena, benavidesite, sphalerite, pyrite, pyrrhotite and arsenopyrite in the Peru deposit.


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