Marcasite

Overview

Fe+2S2
Fluorescence: none	Not Radioactive	Magnetic: AH

Description

Physical Properties

Property	Value
Density	4.89 g/cc
Hardness - Mohs	Marcasite - 6-6.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	bronze, yellow, white
Streak	gray black

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	indistinct
Tenacity	brittle
Fracture	uneven
Luster	metallic

Similar Minerals

Dana Number : 02.12.02.01

Class: 02

Group: 02.12

Subgroup: 02.12.02 - marcasite

Dana Number	Mineral Name	Formula
02.12.02.01	marcasite	Fe+2S2
02.12.02.09	löllingite	FeAs2
02.12.02.11	safflorite	(Co,Fe)As2

Nickel-Strunz Number : 02.EB.10a

Group : 02

Subgroup : EB

Nickel-Strunz Number	Mineral Name	Formula
02.EB.10a	marcasite	Fe+2S2

Specimens

Localities

Uses