Cupropearceite

Overview

(Cu6As2S7)(Ag9CuS4)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	6.149 g/cc
Hardness - Mohs	Cupropearceite - -  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	black
Streak	-

Crystal Properties

Property	Value
Crystal structure	trigonal - hexagonal scalenohedral
Cleavage	-
Tenacity	-
Fracture	-
Luster	metallic

Similar Minerals

Dana Number : 03.01.08.03

Class: 03

Group: 03.01

Subgroup: 03.01.08 - pearceite

Dana Number	Mineral Name	Formula
03.01.08.02	antimonpearceite	(Ag9CuS4)((Ag,Cu)6(Sb,As)2S7)
03.01.08.02	polybasite-(Tac)	(Ag9CuS4)((Ag,Cu)6(Sb,As)2S7)
03.01.08.03	cupropearceite	(Cu6As2S7)(Ag9CuS4)

Nickel-Strunz Number : 02.GB.15

Group : 02

Subgroup : GB

Nickel-Strunz Number	Mineral Name	Formula
02.GB.15	antimonpearceite	(Ag9CuS4)((Ag,Cu)6(Sb,As)2S7)
02.GB.15	cupropearceite	(Cu6As2S7)(Ag9CuS4)
02.GB.15	polybasite	(Ag9CuS4)((Ag,Cu)6(Sb,As)2S7)
02.GB.15	polybasite-(Tac)	(Ag9CuS4)((Ag,Cu)6(Sb,As)2S7)

Specimens

Localities

Uses