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Minerals - Norbergite | TerraCollect
Mineral - Norbergite
Norbergite
Mg₃(SiO₄)(F,OH)₂
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Mg₃(SiO₄)(F,OH)₂
Unit Cell
Physical Properties
Hardness
6 - 6.5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
white
brown
red
yellow
Birefringence
Luster
Vitreous,
Waxy
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
Cleavage
Fracture
Tenacity
orthorhombic
Point Group
Space Group
Habit
blocky,
granular,
prismatic,
tabular
Formation
Metasomatose
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Norbergite