Tennantite

Overview

(Cu,Fe+2)12As4S13
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	4.6-4.7 g/cc
Hardness - Mohs	Tennantite - 3.5-4.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	gray, black
Streak	reddish gray

Crystal Properties

Property	Value
Crystal structure	isometric - hextetrahedral
Cleavage	none
Tenacity	brittle
Fracture	sub-conchoidal
Luster	metallic

Similar Minerals

Dana Number : 03.03.06.02

Class: 03

Group: 03.03

Subgroup: 03.03.06 - tetrahedrite

Dana Number	Mineral Name	Formula
03.03.06.01	tetrahedrite	(Cu,Fe)12Sb4S13
03.03.06.02	tennantite	(Cu,Fe+2)12As4S13

Nickel-Strunz Number : 02.GB.05

Group : 02

Subgroup : GB

Nickel-Strunz Number	Mineral Name	Formula
02.GB.05	tennantite	(Cu,Fe+2)12As4S13
02.GB.05	tetrahedrite	(Cu,Fe)12Sb4S13

Specimens

Localities

Uses