Tungusite

Overview

Ca14Fe+29(Si8O20)3(OH)22
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.59 g/cc
Hardness - Mohs	Tungusite - 2  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	green, greenish white
Streak	light green

Crystal Properties

Property	Value
Crystal structure	triclinic - pinacoidal
Cleavage	perfect
Tenacity	brittle
Fracture	flexible
Luster	pearly

Similar Minerals

Dana Number : 78.05.09.01

Class: 78

Group: 78.05

Subgroup: 78.05.09 - tungusite

Dana Number	Mineral Name	Formula
78.05.09.01	tungusite	Ca14Fe+29(Si8O20)3(OH)22

Nickel-Strunz Number : 09.EE.30

Group : 09

Subgroup : EE

Nickel-Strunz Number	Mineral Name	Formula
09.EE.30	gyrolite	NaCa16Si23AlO60(OH)8·64(H2O)
09.EE.30	tungusite	Ca14Fe+29(Si8O20)3(OH)22

Specimens

Localities

Uses