Grischunite

Overview

NaCa2Mn+25Fe+3(AsO4)6·2(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.8 g/cc
Hardness - Mohs	Grischunite - 5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown
Streak	brown to orange

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	perfect
Tenacity	-
Fracture	-
Luster	vitreous, glassy

Similar Minerals

Dana Number : 40.02.11.01

Class: 40

Group: 40.02

Subgroup: 40.02.11 - grischunite

Dana Number	Mineral Name	Formula
40.02.11.01	grischunite	NaCa2Mn+25Fe+3(AsO4)6·2(H2O)

Nickel-Strunz Number : 08.CF.05

Group : 08

Subgroup : CF

Nickel-Strunz Number	Mineral Name	Formula
08.CF.05	grischunite	NaCa2Mn+25Fe+3(AsO4)6·2(H2O)

Specimens

Localities

Uses