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Minerals - Kobellite | TerraCollect
Mineral - Kobellite
Kobellite
Pb₂₂Cu₄(Bi,Sb)₃₀S₆₉
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
low
Formula
Pb₂₂Cu₄(Bi,Sb)₃₀S₆₉
Unit Cell
a=22,62 b=34,08 c=4,02 Z=2
Physical Properties
Hardness
2.5 - 3
Streak
black
Density
Very Heavy (>6)
Optical Properties
Color
black
gray
silver
Birefringence
Luster
Metallic
Transparency
opaque
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Composition
Elements
Mass
Pb
33,20
Cu
1,00
Ag
0,50
Fe
0,60
Bi
37,60
Sb
9,60
S
18,60
Schweden
Cleavage
Gut auf (010)
Fracture
uneven
Tenacity
Point Group
Space Group
Habit
tufty,
coarse,
fibrous,
felted,
massive,
acicular,
radial
Formation
hydrothermal, bei hohen Temperaturen
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Kobellite
Groups and Members
Kobellit-Reihe
