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Minerals - KruƄaite | TerraCollect
Mineral - KruƄaite
KruƄaite
CuSeâ
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
none
Formula
CuSeâ
Unit Cell
a=6,10 Z=4
Physical Properties
Hardness
4
Streak
black
gray
gray black
Optical Properties
Color
black
gray
silver
Birefringence
Luster
Metallic
Transparency
opaque
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Composition
Elements
Mass
Cu
17,9
Co
2,2
Ni
8,9
Fe
0,1
Hg
0,1
Se
71,6
Bolivien
Groups and Members
Pyrit-Gruppe
Density
Very Heavy (>6)
Cleavage
Fracture
Tenacity
Point Group
Space Group
Habit
coarse,
massive,
Octahedron,
Tetrahedron
Formation
hydrothermal
Paragenesis
Twinning
Rarity
Very rare
Synonyms
KruƄaite
