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Minerals - Gahnite | TerraCollect
Mineral - Gahnite
Gahnite
ZnAlâ‚‚Oâ‚„
Chemical Properties
Mineral Class
Oxides and Hydrxides
Toxicity
none
Formula
ZnAlâ‚‚Oâ‚„
Unit Cell
Physical Properties
Hardness
7.5 - 8
Streak
white
Density
Optical Properties
Color
black
brown
blue
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Cleavage
Fracture
Tenacity
Point Group
Space Group
Habit
Octahedron,
Cube
Formation
Magmatisch, Metamorphose
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Gahnite
