Walstromite

Overview

BaCa2Si3O9
Fluorescence: pink under SW, pink orange under LW	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.67 g/cc
Hardness - Mohs	Walstromite - 3.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	colorless, white
Streak	white

Crystal Properties

Property	Value
Crystal structure	triclinic - pinacoidal
Cleavage	perfect
Tenacity	-
Fracture	-
Luster	vitreous, pearly

Similar Minerals

Dana Number : 59.01.02.01

Class: 59

Group: 59.01

Subgroup: 59.01.02 - walstromite

Dana Number	Mineral Name	Formula
59.01.02.01	walstromite	BaCa2Si3O9
59.01.02.02	margarosanite	Pb(Ca,Mn+2)2Si3O9

Nickel-Strunz Number : 09.CA.25

Group : 09

Subgroup : CA

Nickel-Strunz Number	Mineral Name	Formula
09.CA.25	margarosanite	Pb(Ca,Mn+2)2Si3O9
09.CA.25	walstromite	BaCa2Si3O9

Specimens

Localities

Uses