Mineral - Hibonite
Hibonite
Chemical Properties
Mineral Class
Oxides and Hydrxides
Toxicity
none
Formula
(Ca,Ce)(Mg,Fe²⁺)Al₁₀(Ti⁴⁺,Al)O₁₉
Unit Cell
Physical Properties
Hardness
7.5 - 8
Streak
brownredred brown
Density
Cleavage
Fracture
Tenacity
Optical Properties
Color
blackbrownred
Birefringence
Luster
Vitreous,
Metallic
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
hexagonal
Point Group
Space Group
Habit
prismatic, tabular
Formation
Metamorphose
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Hibonite