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Minerals - Høgtuvaite | TerraCollect
Mineral - Høgtuvaite
Høgtuvaite
Ca₄[Fe²⁺₆Fe³⁺₆]O₄[Si₈Be₂Al₂O₃₆]
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Ca₄[Fe²⁺₆Fe³⁺₆]O₄[Si₈Be₂Al₂O₃₆]
Unit Cell
Physical Properties
Hardness
5.5
Streak
green
Density
Optical Properties
Color
black
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
acicular,
prismatic,
tabular
Formation
Metamorphose
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Høgtuvaite
