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Minerals - Schneiderhöhnite | TerraCollect
Mineral - Schneiderhöhnite
Schneiderhöhnite
Fe²⁺Fe³⁺₃As³⁺₅O₁₃
Chemical Properties
Mineral Class
Oxides and Hydrxides
Toxicity
middle
Formula
Fe²⁺Fe³⁺₃As³⁺₅O₁₃
Unit Cell
a=8.92 b=10.02 c=9.10 α=60° β=112° γ=82° Z=2
Physical Properties
Hardness
3
Streak
brown
Density
Heavy (3,5-6)
Optical Properties
Color
black
brown
Birefringence
0.020
Luster
Metallic,
Adamantine
Transparency
translucent,
opaque
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Composition
Elements
Mass
As
47.03
Fe
27.90
Zn
0.93
Ge
0.37
O
23.77
Namibia (Ottemann 1974)
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Perfect after {100}
Fracture
smooth
Tenacity
Brittle
Point Group
triclinic-pinacoidal -
1
Space Group
P
1
(2)
Habit
wedge-shaped,
spear-shaped,
spindle-shaped,
tabular
Formation
Secondarily, in the oxidation zone of arsenic-bearing sulfide deposits, under hydrothermal conditions through the alteration of primary arsenides such as Löllingite.
Paragenesis
Twinning
Rarity
Rare
Synonyms
Schneiderhöhnite
