Mineral - Millerite
Millerite
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
middle
Formula
NiS
Unit Cell
Physical Properties
Hardness
3.5
Streak
blackgreengreen black
Density
Cleavage
Fracture
Tenacity
Optical Properties
Color
gray
Birefringence
Luster
Metallic
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Space Group
Habit
acicular, radial
Formation
Magmatisch
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Millerite