Armenite

Overview

BaCa2Al6Si9O15
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.76 g/cc
Hardness - Mohs	Armenite - 7.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	colorless, green, white
Streak	white

Crystal Properties

Property	Value
Crystal structure	orthorhombic - pyramidal
Cleavage	perfect
Tenacity	brittle
Fracture	brittle
Luster	vitreous, glassy

Similar Minerals

Dana Number : 63.02.01b.01

Class: 63

Group: 63.02

Subgroup: 63.02.01b - milarite

Dana Number	Mineral Name	Formula
63.02.01b.01	armenite	BaCa2Al6Si9O15

Nickel-Strunz Number : 09.CM.05

Group : 09

Subgroup : CM

Nickel-Strunz Number	Mineral Name	Formula
09.CM.05	armenite	BaCa2Al6Si9O15
09.CM.05	chayesite	K(Mg,Fe+2)4Fe+3(Si12O30)
09.CM.05	darapiosite	KNa2Zr(Li(Mn,Zr)2Si12O30)
09.CM.05	milarite	K2Ca4Al2Be4(Si24O60)·(H2O)
09.CM.05	osumilite-(Fe)	(K,Na)(Fe+2,Mg)2(Al,Fe+3)3(Si,Al)12O30
09.CM.05	roedderite	(Na,K)2(Mg,Fe+2)5Si12O30

Specimens

Localities

Uses