Fluororichterite

Overview

Na(Ca,Na)Mg5(Si8O22)F2
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.17 g/cc
Hardness - Mohs	Fluororichterite - 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	brown
Streak	white

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	perfect
Tenacity	brittle
Fracture	uneven
Luster	vitreous

Similar Minerals

Dana Number : 66.01.03b.09a

Class: 66

Group: 66.01

Subgroup: 66.01.03b - sodic-calcic

Dana Number	Mineral Name	Formula
66.01.03b.09a	fluororichterite	Na(Ca,Na)Mg5(Si8O22)F2

Nickel-Strunz Number : 09.DE.20

Group : 09

Subgroup : DE

Nickel-Strunz Number	Mineral Name	Formula
09.DE.20	fluororichterite	Na(Ca,Na)Mg5(Si8O22)F2

Specimens

Localities

Uses