Mineral - Kudriavite
Kudriavite
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
middle
Formula
(Cd,Pb)Bi₂S₄
Unit Cell
a=13,10 b=4,00 c=14,71 β=116° Z=4
Physical Properties
Hardness
1 - 10
Streak
black
Density
Very Heavy (>6)
Cleavage
Keine
Fracture
uneven
Tenacity
Brittle
Optical Properties
Color
blackgrayred
Birefringence
Luster
Metallic
Transparency
opaque
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Point Group
Space Group
Habit
acicular, prismatic, skeletal
Formation
Vulkanisch, als Hochtemperatur-Fumarolenverkrustungen (400°C)
Paragenesis
Twinning
Rarity
Rare
Synonyms
Kudriavite
Composition
Elements
Mass
Cd
8,3
Pb
13,1
Fe
0,2
Mn
0,3
Bi
55,4
In
2,8
Ti
0,01
S
17,7
Se
2,2
Cl
0,02
Russland