Epsomite

Overview

MgSO4·7(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	1.67-1.68 g/cc
Hardness - Mohs	Epsomite - 2.0-2.5  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	orthorhombic - disphenoidal
Cleavage	perfect
Tenacity	brittle
Fracture	brittle
Luster	vitreous, glassy

Similar Minerals

Dana Number : 29.06.11.01

Class: 29

Group: 29.06

Subgroup: 29.06.11 - epsomite

Dana Number	Mineral Name	Formula
29.06.11.01	epsomite	MgSO4·7(H2O)
29.06.11.02	goslarite	Zn(SO4)·7(H2O)
29.06.11.03	morenosite	Ni(SO4)·7(H2O)

Nickel-Strunz Number : 07.CB.40

Group : 07

Subgroup : CB

Nickel-Strunz Number	Mineral Name	Formula
07.CB.40	epsomite	MgSO4·7(H2O)
07.CB.40	goslarite	Zn(SO4)·7(H2O)
07.CB.40	morenosite	Ni(SO4)·7(H2O)

Specimens

Localities

Uses