Gearksutite

Overview

CaAl(OH,F)5·(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.75 g/cc
Hardness - Mohs	Gearksutite - 2  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	white
Streak	white

Crystal Properties

Property	Value
Crystal structure	monoclinic - unknown
Cleavage	none
Tenacity	brittle
Fracture	conchoidal
Luster	vitreous, dull

Similar Minerals

Dana Number : 11.06.08.01

Class: 11

Group: 11.06

Subgroup: 11.06.08 - gearksutite

Dana Number	Mineral Name	Formula
11.06.08.01	gearksutite	CaAl(OH,F)5·(H2O)

Nickel-Strunz Number : 03.CC.05

Group : 03

Subgroup : CC

Nickel-Strunz Number	Mineral Name	Formula
03.CC.05	gearksutite	CaAl(OH,F)5·(H2O)

Specimens

Localities

Uses