Mineral - Haüyne
Haüyne
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Na⁵⁻₆Ca₂[(SO₄,Cl)₂|Al₆Si₆O₂₄]
Unit Cell
Physical Properties
Hardness
5.5 - 6
Streak
blue
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
blue
Birefringence
Luster
Vitreous,
Greasy
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Point Group
Space Group
Habit
massive, prismatic
Formation
Magmatisch
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Haüyne