Mineral - Thénardite
Thénardite
Chemical Properties
Mineral Class
Sulphates
Toxicity
none
Formula
Na₂SO₄
Unit Cell
Physical Properties
Hardness
2.5 - 3
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitegraycolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Space Group
Habit
dipyramidal, tabular
Formation
Sedimentär (Evaporit)
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Thénardite