Britvinite

Overview

Pb7+xMg4.5((Si,Al)5O14)(BO3)((BO3),(AsO4))(CO3)(OH,O)7
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	5.51 g/cc
Hardness - Mohs	Britvinite - 3  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	pale yellow, colorless
Streak	white

Crystal Properties

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

Similar Minerals

Dana Number : 71.05.03.01

Class: 71

Group: 71.05

Subgroup: 71.05.03 - britvinite

Dana Number	Mineral Name	Formula
71.05.03.01	britvinite	Pb7+xMg4.5((Si,Al)5O14)(BO3)((BO3),(AsO4))(CO3)(OH,O)7

Nickel-Strunz Number : 09.EG.70

Group : 09

Subgroup : EG

Nickel-Strunz Number	Mineral Name	Formula
09.EG.70	britvinite	Pb7+xMg4.5((Si,Al)5O14)(BO3)((BO3),(AsO4))(CO3)(OH,O)7

Specimens

Localities

Uses