Mineral - Picropharmacolite
Picropharmacolite
Chemical Properties
Mineral Class
Arsenates
Toxicity
middle
Formula
Ca₄Mg(AsO₄)₂(HAsO₄)₂ · 11H₂O
Unit Cell
Physical Properties
Hardness
1 - 2
Streak
white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
whitepinkcolorless
Birefringence
Luster
Vitreous,
Silky,
Pearly
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Space Group
Habit
tufty, spherical, acicular
Formation
Oxidationszone von Arsen-Lagerstätten
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Picropharmacolite