Dickite

Overview

Al2Si2O5(OH)4
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.6 g/cc
Hardness - Mohs	Dickite - 1.5-2.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	blue, colorless, gray, brown, white
Streak	white

Crystal Properties

Property	Value
Crystal structure	monoclinic - domatic
Cleavage	perfect
Tenacity	flexible
Fracture	earthy
Luster	pearly

Similar Minerals

Dana Number : 71.01.01.01

Class: 71

Group: 71.01

Subgroup: 71.01.01 - kaolinite

Dana Number	Mineral Name	Formula
71.01.01.01	dickite	Al2Si2O5(OH)4
71.01.01.02	kaolinite	Al2Si2O5(OH)4
71.01.01.03	nacrite	Al2Si2O5(OH)4

Nickel-Strunz Number : 09.ED.05

Group : 09

Subgroup : ED

Nickel-Strunz Number	Mineral Name	Formula
09.ED.05	dickite	Al2Si2O5(OH)4
09.ED.05	kaolinite	Al2Si2O5(OH)4
09.ED.05	nacrite	Al2Si2O5(OH)4

Specimens

Localities

Uses