Mineral - Langite
Langite
Chemical Properties
Mineral Class
Sulphates
Toxicity
none
Formula
Cu₄[(OH)₆|SO₄]·2H₂O
Unit Cell
Physical Properties
Hardness
2.5 - 3
Streak
blue
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
blue
Birefringence
Luster
Vitreous,
Silky
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
massive
Formation
Oxidationszone von Kupfer-Lagerstätten
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Langite