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Minerals - Frondelite | TerraCollect
Mineral - Frondelite
Frondelite
Mn²⁺Fe³⁺₄(PO₄)₃(OH)₅
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
Mn²⁺Fe³⁺₄(PO₄)₃(OH)₅
Unit Cell
Physical Properties
Hardness
4.5
Streak
brown
green
Density
Normal (2-3,5)
Optical Properties
Color
brown
red
orange
Birefringence
Luster
Vitreous,
Earthy
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Cleavage
Fracture
Tenacity
Point Group
Space Group
Habit
fibrous,
acicular,
radial
Formation
Sekundär in Pegmatiten
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Frondelite
