Chalcophanite

Overview

(Zn,Fe+2,Mn+2)Mn+43O7·3(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.91 g/cc
Hardness - Mohs	Chalcophanite - 2.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	blue, black
Streak	brown

Crystal Properties

Property	Value
Crystal structure	trigonal - rhombohedral
Cleavage	perfect
Tenacity	-
Fracture	flexible
Luster	metallic

Similar Minerals

Dana Number : 07.08.02.01

Class: 07

Group: 07.08

Subgroup: 07.08.02 - chalcophanite

Dana Number	Mineral Name	Formula
07.08.02.01	chalcophanite	(Zn,Fe+2,Mn+2)Mn+43O7·3(H2O)
07.08.02.02	aurorite	(Mn,Ag,Ca)Mn+43O7

Nickel-Strunz Number : 04.FL.20

Group : 04

Subgroup : FL

Nickel-Strunz Number	Mineral Name	Formula
04.FL.20	aurorite	(Mn,Ag,Ca)Mn+43O7
04.FL.20	chalcophanite	(Zn,Fe+2,Mn+2)Mn+43O7·3(H2O)

Specimens

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Uses