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Minerals - Johannite | TerraCollect
Mineral - Johannite
Johannite
Cu(UO₂)₂(SO₄)₂(OH)₂ · 8H₂O
Chemical Properties
Mineral Class
Sulphates
Toxicity
radioactive
Formula
Cu(UO₂)₂(SO₄)₂(OH)₂ · 8H₂O
Unit Cell
Physical Properties
Hardness
1 - 10
Streak
green
Density
Optical Properties
Color
green
Birefringence
Luster
Vitreous
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
coarse,
crusty,
spherical,
massive,
prismatic,
radial
Formation
Sekundär, Oxidation aus Uraninit
Paragenesis
Twinning
Rarity
Synonyms
Johannite
