Uchucchacuaite

Uchucchacuaite (AgMnPb₃Sb₅S₁₂) is a rare sulfosalt mineral found in hydrothermal deposits.

Uchucchacuaite
Uchucchacuaite in a matrix
General
Category	Sulfosalt minerals
Formula	AgMnPb3Sb5S12
IMA symbol	Uch[1]
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	[2]

It was first described in 1984 for an occurrence in the Uchucchacua Mine, Oyon Province, Lima Department, Peru, and named for the mine.^[2] It has also been reported from mines in Hokkaido, Japan.^[2] It occurs with alabandite, galena, benavidesite, sphalerite, pyrite, pyrrhotite and arsenopyrite in the Peru deposit.^[3]