Mineral - Petalite
Petalite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
LiAl[Si₄O₁₀][
Unit Cell
Physical Properties
Hardness
6 - 6.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
grayredcolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
massive, tabular
Formation
Magmatisch
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Petalite