Mineral - Tunisite
Tunisite
Chemical Properties
Mineral Class
Carbonates
Toxicity
none
Formula
NaCa₂Al₄(CO₃)₄(OH)₈Cl
Unit Cell
Physical Properties
Hardness
4.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitecolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
tetragonal
Point Group
Space Group
Habit
leafy, tabular
Formation
hydrothermal
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Tunisite