Siegenite

Overview

(Ni,Co)3S4
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	4.5-4.8 g/cc
Hardness - Mohs	Siegenite - 5.0-5.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	purple gray, red, gray
Streak	gray black

Crystal Properties

Property	Value
Crystal structure	isometric - hexoctahedral
Cleavage	imperfect
Tenacity	brittle
Fracture	uneven
Luster	metallic

Similar Minerals

Dana Number : 02.10.01.06

Class: 02

Group: 02.10

Subgroup: 02.10.01 - linnaeite

Dana Number	Mineral Name	Formula
02.10.01.02	carrollite	Cu(Co,Ni)2S4
02.10.01.03	fletcherite	Cu(Ni,Co)2S4
02.10.01.06	siegenite	(Ni,Co)3S4
02.10.01.07	polydymite	NiNi2S4
02.10.01.15	cuproiridsite	CuIr2S4

Nickel-Strunz Number : 02.DA.05

Group : 02

Subgroup : DA

Nickel-Strunz Number	Mineral Name	Formula
02.DA.05	carrollite	Cu(Co,Ni)2S4
02.DA.05	cuproiridsite	CuIr2S4
02.DA.05	fletcherite	Cu(Ni,Co)2S4
02.DA.05	polydymite	NiNi2S4
02.DA.05	siegenite	(Ni,Co)3S4

Specimens

Localities

Uses