Mineral - Pollucite
Pollucite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
(Cs,Na)₂Al₂Si₄O₁₂ · H₂O
Unit Cell
Physical Properties
Hardness
6.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitecolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Point Group
Space Group
Habit
dodecahedron, massive, trapezoidal
Formation
Pegmatite
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Pollucite