Mineral - Danalite
Danalite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Fe₄[S|(BeSiO₄)₃]
Unit Cell
Physical Properties
Hardness
5.5 - 6
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
brownredyellow
Birefringence
Luster
Vitreous,
Greasy
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Point Group
Space Group
Habit
dodecahedron, Octahedron
Formation
Magmatisch, hydrothermal
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Danalite