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Minerals - Feklichevite | TerraCollect
Mineral - Feklichevite
Feklichevite
Na₁₁Ca₉(Fe³⁺,Fe²⁺)₂Zr₃Nb[Si₂₅O₇₃](OH,H₂O,Cl,O)₅
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Na₁₁Ca₉(Fe³⁺,Fe²⁺)₂Zr₃Nb[Si₂₅O₇₃](OH,H₂O,Cl,O)₅
Unit Cell
Physical Properties
Hardness
5.5
Streak
Density
Optical Properties
Color
Birefringence
Luster
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
Formation
Paragenesis
Twinning
Rarity
Synonyms
Feklichevite
