Beryl

Overview

Be3Al2Si6O18
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.63-2.9 g/cc
Hardness - Mohs	Beryl - 7.5-8  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	green, blue, yellow, pink, colorless
Streak	white

Crystal Properties

Property	Value
Crystal structure	hexagonal - dihexagonal dipyramidal
Cleavage	imperfect
Tenacity	brittle
Fracture	brittle
Luster	vitreous, resinous

Similar Minerals

Dana Number : 61.01.01.01

Class: 61

Group: 61.01

Subgroup: 61.01.01 - beryl

Dana Number	Mineral Name	Formula
61.01.01.01	aquamarine	Be3Al2Si6O18
61.01.01.01	beryl	Be3Al2Si6O18
61.01.01.01	emerald	Be3Al2Si6O18
61.01.01.01	morganite	Be3Al2Si6O18
61.01.01.05	pezzottaite	Cs(Be2Li)Al2Si6O18

Nickel-Strunz Number : 09.CJ.05

Group : 09

Subgroup : CJ

Nickel-Strunz Number	Mineral Name	Formula
09.CJ.05	aquamarine	Be3Al2Si6O18
09.CJ.05	beryl	Be3Al2Si6O18
09.CJ.05	emerald	Be3Al2Si6O18
09.CJ.05	morganite	Be3Al2Si6O18
09.CJ.05	pezzottaite	Cs(Be2Li)Al2Si6O18

Specimens

Localities

Uses