Plancheite

Overview

Cu8Si8O22(OH)4·(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.6-3.8 g/cc
Hardness - Mohs	Plancheite - 5.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	blue, green blue
Streak	light blue

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	-
Tenacity	-
Fracture	-
Luster	adamantine

Similar Minerals

Dana Number : 66.02.01.01

Class: 66

Group: 66.02

Subgroup: 66.02.01 - plancheite

Dana Number	Mineral Name	Formula
66.02.01.01	plancheite	Cu8Si8O22(OH)4·(H2O)

Nickel-Strunz Number : 09.DB.35

Group : 09

Subgroup : DB

Nickel-Strunz Number	Mineral Name	Formula
09.DB.35	plancheite	Cu8Si8O22(OH)4·(H2O)

Specimens

Localities

Uses