Mineral - Poudretteite
Poudretteite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
KNa₂B₃Si₁₂O₃₀
Unit Cell
Physical Properties
Hardness
5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
pinkcolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
hexagonal
Point Group
Space Group
Habit
prismatic
Formation
Metasomatose (Kontaktmetamorphose)
Paragenesis
Twinning
Rarity
Rare
Synonyms
Poudretteite