Mineral - Långbanite
Långbanite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Mn²⁺₄Mn³⁺₉Sb⁵⁺O₁₆(SiO₄)₂
Unit Cell
Physical Properties
Hardness
6.5
Streak
Density
Cleavage
Fracture
Tenacity
Optical Properties
Color
Birefringence
Luster
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Space Group
Habit
Formation
Paragenesis
Twinning
Rarity
Synonyms
Långbanite