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Minerals - Omphacite | TerraCollect
Mineral - Omphacite
Omphacite
(Ca,Na)(Mg,Fe,Al)Si₂O₆
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
(Ca,Na)(Mg,Fe,Al)Si₂O₆
Unit Cell
Physical Properties
Hardness
5 - 6
Streak
white
green
green white
Optical Properties
Color
green
Birefringence
Luster
Vitreous,
Silky
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Space Group
Habit
granular,
massive
Formation
Metamorphose
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Omphacite
