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Minerals - Normandite | TerraCollect
Mineral - Normandite
Normandite
NaCa(Mn²⁺,Fe²⁺)(Ti,Nb,Zr)Si₂O₇(O,F)₂
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
NaCa(Mn²⁺,Fe²⁺)(Ti,Nb,Zr)Si₂O₇(O,F)₂
Unit Cell
Physical Properties
Hardness
5.5
Streak
white
yellow
yellow white
Optical Properties
Color
brown
orange
yellow
Birefringence
Luster
Vitreous,
Greasy
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Point Group
Space Group
Habit
acicular,
radial
Formation
Magmatisch (Pegmatite)
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Normandite
