Pyrite
FeS2

Crystal symmetry

Isometric diploidal Space group: Pa3
H-M symbol: 2/m3

Unit cell

a = 5.417 Å , Z = 4

Identification

 

Color

Pale brass-yellow, tarnishes darker and iridescent

Crystal system

Isometric

Cleavage

Indistinct on {001};
partings on {011} and {111}

Mohs scale hardness

6 - 6.5

Diaphaneity

Opaque

Specific gravity

4.95 - 5.10

Fusibility

2.5 - 3 to a magnetic globule

Other characteristics

paramagnetic

Pyrite is a semiconductor material with band gap of 0.95 eV.[15]