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Minerals - Greifensteinite | TerraCollect
Mineral - Greifensteinite
Greifensteinite
Ca₂Fe²⁺₅Be₄(PO₄)₆(OH)₄ · 6H₂O
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
Ca₂Fe²⁺₅Be₄(PO₄)₆(OH)₄ · 6H₂O
Unit Cell
Physical Properties
Hardness
4.5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
brown
green
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
sheaf-shaped,
spherical,
prismatic
Formation
Sekundär, Pegmatit
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Greifensteinite
