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Minerals - Rockbridgeite | TerraCollect
Mineral - Rockbridgeite
Rockbridgeite
Fe²⁺Fe³⁺₄[(OH)₅|(PO₄)₃]
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
Fe²⁺Fe³⁺₄[(OH)₅|(PO₄)₃]
Unit Cell
Physical Properties
Hardness
3.5 - 4.5
Streak
gray
green
green grey
Optical Properties
Color
black
green
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Space Group
Habit
fibrous,
grape-shaped
Formation
Sedimentär
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Rockbridgeite
