Cosalite

Overview

Pb2Bi2S5
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	6.4-6.8 g/cc
Hardness - Mohs	Cosalite - 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, white
Streak	black

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	good
Tenacity	-
Fracture	uneven
Luster	metallic

Similar Minerals

Dana Number : 03.05.09.01

Class: 03

Group: 03.05

Subgroup: 03.05.09 - cosalite

Dana Number	Mineral Name	Formula
03.05.09.01	cosalite	Pb2Bi2S5
03.05.09.03	dufrenoysite	Pb2As2S5

Nickel-Strunz Number : 02.JB.10

Group : 02

Subgroup : JB

Nickel-Strunz Number	Mineral Name	Formula
02.JB.10	cosalite	Pb2Bi2S5

Specimens

Localities

Uses