Mineral - Strunzite
Strunzite
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
Mn²⁺Fe³⁺₂(PO₄)₂(OH)₂ · 6H₂O
Unit Cell
Physical Properties
Hardness
4
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whiteyellow
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Space Group
Habit
tufty, fibrous, acicular, radial
Formation
Sekundär, Verwitterung von primären Phosphaten (Triphylin)
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Strunzite