Mineral - Uvite
Uvite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
CaMg₃(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₄
Unit Cell
Physical Properties
Hardness
7 - 7.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
blackbrowngreen
Birefringence
Luster
Vitreous,
Greasy
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Space Group
Habit
prismatic
Formation
Metasomatose
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Uvite