Mineral - Glauberite
Glauberite
Chemical Properties
Mineral Class
Sulphates
Toxicity
none
Formula
CaNa₂[SO₄]₂
Unit Cell
Physical Properties
Hardness
2.5 - 3
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitegrayyellow
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
dipyramidal, prismatic, tabular
Formation
Sedimentär, Resublimation (Evaporit)
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Glauberite