Iron Sulfide Hexagonal
FeS
Chemical name
Iron Sulfide Hexagonal
Mineral name
Pyrrhothin
Chemical formula
FeS
Crystal system
hexagonal
Crystal Class
dihexagonal-dipyramidal (6/m 2/m 2/m)
Space Group
P6_3/mmc
Unit cell
a [Å]:3.44
b [Å]:3.44
c [Å]:5.88
Molecular weight [g/mol]
ca. 87,91
Formula units
Z=2
Mohs hardness
3.5 - 4.5
Density [g/cm3]
4.6
Cleavage
clear on {0001} and {11-20}
Fracture / Tenacity
conchoidal, brittle
Color
yellowish brown
Streak
gray to black
Transparency
opaque