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Minerals - Sigloite | TerraCollect
Mineral - Sigloite
Sigloite
Fe³⁺Al₂(PO₄)₂(OH)₃ · 7H₂O
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
Fe³⁺Al₂(PO₄)₂(OH)₃ · 7H₂O
Unit Cell
Physical Properties
Hardness
3
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
brown
yellow
Birefringence
Luster
Vitreous,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
coarse,
prismatic,
Rhombohedron,
tabular
Formation
Oxidation von Vauxit
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Sigloite
