Carpholite

Overview

MnAl2Si2O6(OH)4
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.9 g/cc
Hardness - Mohs	Carpholite - 5.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	yellow, gray, brown
Streak	white

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	imperfect
Tenacity	very brittle
Fracture	uneven
Luster	silky

Similar Minerals

Dana Number : 65.01.05.01

Class: 65

Group: 65.01

Subgroup: 65.01.05 - carpholite

Dana Number	Mineral Name	Formula
65.01.05.01	carpholite	MnAl2Si2O6(OH)4
65.01.05.03	magnesiocarpholite	MgAl2Si2O6(OH)4
65.01.05.06	vanadiocarpholite	Mn+2V+3Al(Si2O6)(OH)4

Nickel-Strunz Number : 09.DB.05

Group : 09

Subgroup : DB

Nickel-Strunz Number	Mineral Name	Formula
09.DB.05	carpholite	MnAl2Si2O6(OH)4
09.DB.05	magnesiocarpholite	MgAl2Si2O6(OH)4
09.DB.05	vanadiocarpholite	Mn+2V+3Al(Si2O6)(OH)4

Specimens

Localities

Uses