Mineral - Senegalite
Senegalite
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
Al₂(PO₄)(OH)(OH)₂ · H₂O
Unit Cell
Physical Properties
Hardness
5.5
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
yellowgreencolorless
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Space Group
Habit
crusty, spherical, prismatic
Formation
In der Oxidationszone von Eisen-Lagerstätten (Sekundär)
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Senegalite