Mineral - Osumilite-(Mg)
Osumilite-(Mg)
Chemical Properties
Mineral Class
Silicates
Toxicity
Formula
K □2Mg₂Al₃[Al₂Si₁₀O₃₀]
Unit Cell
Physical Properties
Hardness
5.5 - 6
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
browngreenblue
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
hexagonal
Point Group
dihexagonal-dipyramidal - 6/m 2/m 2/m
Space Group
P6/mcc (192)
Habit
tabular
Formation
Paragenesis
Twinning
Rarity
Synonyms
Osumilite-(Mg)