Mineral - Siegenite
Siegenite
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
none
Formula
CoNi₂S₄
Unit Cell
Physical Properties
Hardness
4.5 - 5.5
Streak
blackgraygray black
Density
Cleavage
Fracture
Tenacity
Optical Properties
Color
gray
Birefringence
Luster
Metallic
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Point Group
Space Group
Habit
Octahedron, tabular
Formation
hydrothermal
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Siegenite