Mineral - Thortveitite
Thortveitite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Sc₂Si₂O₇
Unit Cell
Physical Properties
Hardness
6 - 7
Streak
gray
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
blackbrowngrayyellowgreen
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
acicular, prismatic, radial
Formation
Magmatisch, Pegmatit
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Thortveitite