Mineral - Sapphirine
Sapphirine
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
(Al,Mg)₈[O₂|(Al,Si)₆O₁₆]
Unit Cell
Physical Properties
Hardness
7.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
greenblue
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic , monoclinic
Point Group
Space Group
Habit
massive, tabular
Formation
Magmatisch, Metamorphose
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Sapphirine