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Minerals - Kupletskite | TerraCollect
Mineral - Kupletskite
Kupletskite
(K,Na)₃(Mn,Fe)₇Ti₂Si₈O₂₆(OH)₄F 2+)₇(Ti,Nb)₂Si₈O₂₄(O,OH)₇
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
(K,Na)₃(Mn,Fe)₇Ti₂Si₈O₂₆(OH)₄F 2+)₇(Ti,Nb)₂Si₈O₂₄(O,OH)₇
Unit Cell
Physical Properties
Hardness
4
Streak
brown
Density
Normal (2-3,5)
Optical Properties
Color
black
brown
Birefringence
Luster
Vitreous,
Adamantine
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
leafy,
coarse,
massive,
tabular
Formation
Magmatisch, Pegmatit
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Kupletskite
