Sinhalite

Overview

MgAlBO4
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.47-3.5 g/cc
Hardness - Mohs	Sinhalite - 6.5-7.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, pink, colorless, yellow
Streak	white

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	-
Tenacity	-
Fracture	conchoidal
Luster	vitreous, glassy

Similar Minerals

Dana Number : 24.01.01.01

Class: 24

Group: 24.01

Subgroup: 24.01.01 - sinhalite

Dana Number	Mineral Name	Formula
24.01.01.01	sinhalite	MgAlBO4

Nickel-Strunz Number : 06.AC.05

Group : 06

Subgroup : AC

Nickel-Strunz Number	Mineral Name	Formula
06.AC.05	sinhalite	MgAlBO4

Specimens

Localities

Uses