Mineral - Eucryptite
Eucryptite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
LiAl[SiO₄]
Unit Cell
Physical Properties
Hardness
6.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitepinkcolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Space Group
Habit
fibrous, massive
Formation
Pegmatite
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Eucryptite