Hausmannite

Overview

Mn+2Mn+32+O4
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	4.84 g/cc
Hardness - Mohs	Hausmannite - 5.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	black, gray
Streak	dark red brown

Crystal Properties

Property	Value
Crystal structure	tetragonal - ditetragonal dipyramidal
Cleavage	perfect
Tenacity	brittle
Fracture	uneven
Luster	sub-metallic

Similar Minerals

Dana Number : 07.02.07.01

Class: 07

Group: 07.02

Subgroup: 07.02.07 - hausmannite

Dana Number	Mineral Name	Formula
07.02.07.01	hausmannite	Mn+2Mn+32+O4

Nickel-Strunz Number : 04.BB.10

Group : 04

Subgroup : BB

Nickel-Strunz Number	Mineral Name	Formula
04.BB.10	hausmannite	Mn+2Mn+32+O4
04.BB.10	iwakiite	Mn+2(Fe+3,Mn+3)2O4

Specimens

Localities

Uses