Bournonite

Overview

PbCuSbS3
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	5.7-5.9 g/cc
Hardness - Mohs	Bournonite - 2.5-3  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	gray, black, steel gray
Streak	gray

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	imperfect
Tenacity	-
Fracture	sub-conchoidal
Luster	metallic

Similar Minerals

Dana Number : 03.04.03.02

Class: 03

Group: 03.04

Subgroup: 03.04.03 - seligmannite

Dana Number	Mineral Name	Formula
03.04.03.01	seligmannite	PbCuAsS3
03.04.03.02	bournonite	PbCuSbS3

Nickel-Strunz Number : 02.GA.50

Group : 02

Subgroup : GA

Nickel-Strunz Number	Mineral Name	Formula
02.GA.50	bournonite	PbCuSbS3
02.GA.50	seligmannite	PbCuAsS3

Specimens

Localities

Uses