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Minerals - Britholite | TerraCollect
Mineral - Britholite
Britholite
[(Y,Ce)Ca]₅(SiO₄)₃(F,OH)
Chemical Properties
Mineral Class
Silicates
Toxicity
radioactive
Formula
[(Y,Ce)Ca]₅(SiO₄)₃(F,OH)
Unit Cell
Physical Properties
Hardness
5.5
Streak
brown
Density
Normal (2-3,5)
Optical Properties
Color
black
brown
Birefringence
Luster
Vitreous,
Greasy
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
hexagonal
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
coarse,
granular,
massive
Formation
Magmatisch, Pegmatit
Paragenesis
Twinning
Rarity
Rare
Synonyms
Britholite
