Mineral - Thomsenolite
Thomsenolite
Chemical Properties
Mineral Class
Halides
Toxicity
none
Formula
NaCa[AlF₆] · H₂O
Unit Cell
Physical Properties
Hardness
2
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitebrowncolorless
Birefringence
Luster
Vitreous,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
acicular, prismatic
Formation
Verwitterung von Kryolith
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Thomsenolite