Molybdenium Disulfide
MoS2
Chemical name
Molybdenium Disulfide
Mineral name
Molybdenite
Chemical formula
MoS2
Melting point [°C]
1750
Crystal system
hexagonal
Crystal Class
dihexagonal-dipyramidal (6/mmm)
Space Group
P6_3/mmc
Unit cell
a [Å]:3.16
b [Å]:3.16
c [Å]:12.32
Molecular weight [g/mol]
160.07
Formula units
Z=2
Mohs hardness
1 - 1.5
Density [g/cm3]
4.7 - 4.8
Cleavage
perfect on [0001]
Fracture / Tenacity
lamellae flexible, not elastic
Color
black, lead-silvery gray
Streak
bluish gray
Transparency
nearly opaque, translucent when in thin flakes
Pleochroism δ
very strong