Mineral - Pharmacosiderite
Pharmacosiderite
Chemical Properties
Mineral Class
Arsenates
Toxicity
middle
Formula
KFe³⁺₄(AsO₄)₃(OH)₄ · 6-7H₂O
Unit Cell
Physical Properties
Hardness
2.5
Streak
whitegreengreen white
Density
Normal (2-3,5)
Cleavage
Fracture
Tenacity
Optical Properties
Color
brownyellowgreen
Birefringence
Luster
Greasy,
Adamantine
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
isometric
Point Group
Space Group
Habit
massive, Cube
Formation
Oxidationszone von Sulfid-Lagerstätten
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Pharmacosiderite