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Minerals - Eastonite | TerraCollect
Mineral - Eastonite
Eastonite
K(Mg,Al)₃[(OH,F)₂|(Si,Al)₄O₁₀]
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
K(Mg,Al)₃[(OH,F)₂|(Si,Al)₄O₁₀]
Unit Cell
Physical Properties
Hardness
2 - 3
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
brown
green
Birefringence
Luster
Greasy,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
leafy
Formation
Metamorphose, Magmatisch
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Eastonite
