Mineral - Fluor-Buergerite
Fluor-Buergerite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Na(Fe³⁺₃)Al₆(Si₆O₁₈)(BO₃)₃O₃F
Unit Cell
Physical Properties
Hardness
7
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
blackbrown
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Space Group
Habit
prismatic
Formation
hydrothermal
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Fluor-Buergerite