Boulangerite

Overview

Pb5Sb4S11
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	5.7-6.3 g/cc
Hardness - Mohs	Boulangerite - 2.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	gray, lead gray, blue gray
Streak	reddish brown

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	indistinct
Tenacity	-
Fracture	brittle
Luster	metallic

Similar Minerals

Dana Number : 03.05.02.01

Class: 03

Group: 03.05

Subgroup: 03.05.02 - boulangerite

Dana Number	Mineral Name	Formula
03.05.02.01	boulangerite	Pb5Sb4S11
03.05.02.02	falkmanite	Pb5Sb4S11

Nickel-Strunz Number : 02.HC.15

Group : 02

Subgroup : HC

Nickel-Strunz Number	Mineral Name	Formula
02.HC.15	boulangerite	Pb5Sb4S11
02.HC.15	falkmanite	Pb5Sb4S11

Specimens

Localities

Uses