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Minerals - Rossmanite | TerraCollect
Mineral - Rossmanite
Rossmanite
Na<0,5(Al,Li,Mn²⁺)₃Al₆[(OH)₄|(BO₃)₃|Si₆O₁₈]
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Na<0,5(Al,Li,Mn²⁺)₃Al₆[(OH)₄|(BO₃)₃|Si₆O₁₈]
Unit Cell
Physical Properties
Hardness
7 - 7.5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
pink
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
acicular,
prismatic
Formation
Magmatisch (Pegmatite)
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Rossmanite
