Clausthalite

Overview

PbSe
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	7.6-8.8 g/cc
Hardness - Mohs	Clausthalite - 2.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	gray, black
Streak	grayish black

Crystal Properties

Property	Value
Crystal structure	isometric - hexoctahedral
Cleavage	perfect
Tenacity	brittle
Fracture	granular
Luster	metallic

Similar Minerals

Dana Number : 02.08.01.02

Class: 02

Group: 02.08

Subgroup: 02.08.01 - galena

Dana Number	Mineral Name	Formula
02.08.01.01	galena	PbS
02.08.01.02	clausthalite	PbSe
02.08.01.03	altaite	PbTe
02.08.01.04	alabandite	MnS

Nickel-Strunz Number : 02.CD.10

Group : 02

Subgroup : CD

Nickel-Strunz Number	Mineral Name	Formula
02.CD.10	alabandite	MnS
02.CD.10	altaite	PbTe
02.CD.10	clausthalite	PbSe
02.CD.10	galena	PbS

Specimens

Localities

Uses