Langbeinite

Overview

K2Mg2(SO4)3
Fluorescence: none	Barely Detectable Radiation	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.83 g/cc
Hardness - Mohs	Langbeinite - 3.5-4.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	colorless, purple, green, gray, yellow
Streak	white

Crystal Properties

Property	Value
Crystal structure	isometric - tetartoidal
Cleavage	none
Tenacity	brittle
Fracture	conchoidal
Luster	vitreous, glassy

Similar Minerals

Dana Number : 28.04.04.01

Class: 28

Group: 28.04

Subgroup: 28.04.04 - langbeinite

Dana Number	Mineral Name	Formula
28.04.04.01	langbeinite	K2Mg2(SO4)3

Nickel-Strunz Number : 07.AC.10

Group : 07

Subgroup : AC

Nickel-Strunz Number	Mineral Name	Formula
07.AC.10	langbeinite	K2Mg2(SO4)3

Specimens

Localities

Uses