Chrome Oxide

Cr2O3

Chrome Oxide - Cr2O3Chrome Oxide - Cr2O3Chrome Oxide - Cr2O3Chrome Oxide - Cr2O3Chrome Oxide - Cr2O3
Chemical name
Chrome Oxide
Mineral name
Chrome Oxide
Chemical formula
Cr2O3
Melting point [°C]
2435
Crystal system
hexagonal/trigonal
Space Group
D3d6/ R-3c
Unit cell
a [Å]:4.96
b [Å]:4.96
c [Å]:13.60
Molecular weight [g/mol]
151.99
Formula units
Z=6
Mohs hardness
9
Density [g/cm3]
5.22
Cleavage
(11-20)
Fracture / Tenacity
hard
Color
light to dark green, fine crystals
Streak
greenish
Transparency
transparent
Refractive Index
nD=2551