Cobaltite

Overview

CoAsS
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	6.33 g/cc
Hardness - Mohs	Cobaltite - 5.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	silver, white, gray, black
Streak	grayish black

Crystal Properties

Property	Value
Crystal structure	orthorhombic - pyramidal
Cleavage	good
Tenacity	-
Fracture	brittle
Luster	metallic

Similar Minerals

Dana Number : 02.12.03.01

Class: 02

Group: 02.12

Subgroup: 02.12.03 - cobaltite

Dana Number	Mineral Name	Formula
02.12.03.01	cobaltite	CoAsS
02.12.03.02	gersdorffite	NiAsS
02.12.03.07	irarsite	(Ir,Ru,Rh,Pt)AsS

Nickel-Strunz Number : 02.EB.25

Group : 02

Subgroup : EB

Nickel-Strunz Number	Mineral Name	Formula
02.EB.25	cobaltite	CoAsS
02.EB.25	gersdorffite	NiAsS
02.EB.25	irarsite	(Ir,Ru,Rh,Pt)AsS

Specimens

Localities

Uses