Charoite

Overview

K5Ca8(Si6O15)2(Si2O7)Si4O0(OH)·3(H2O)
Fluorescence: fluorescent, orange under cathode, pale blue under SW and LW	Barely Detectable Radiation	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.54-2.58 g/cc
Hardness - Mohs	Charoite - 5.0-6.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	purple, brown
Streak	white

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	good
Tenacity	-
Fracture	-
Luster	vitreous, pearly

Similar Minerals

Dana Number : 70.01.02.03

Class: 70

Group: 70.01

Subgroup: 70.01.02 - double crankshaft chains

Dana Number	Mineral Name	Formula
70.01.02.01	narsarsukite	Na2(Ti,Fe+3)Si4(O,F)11
70.01.02.02	caysichite-(Y)	Y2(Ca,Gd)2Si4O10(CO3)3(H2O,O,OH)·3(H2O)
70.01.02.03	charoite	K5Ca8(Si6O15)2(Si2O7)Si4O0(OH)·3(H2O)

Nickel-Strunz Number : 09.DG.09

Group : 09

Subgroup : DG

Nickel-Strunz Number	Mineral Name	Formula
09.DG.09	charoite	K5Ca8(Si6O15)2(Si2O7)Si4O0(OH)·3(H2O)

Specimens

Localities

Uses