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Minerals - Wulfenite | TerraCollect
Mineral - Wulfenite
Wulfenite
Pb(MoOâ‚„)
Chemical Properties
Mineral Class
Molybdates
Toxicity
low
Formula
Pb(MoOâ‚„)
Unit Cell
a=5.44 c=12.07 Z=4
Physical Properties
Hardness
2.5 - 3
Streak
white
Density
Very Heavy (>6)
Optical Properties
Color
black
brown
red
orange
yellow
green
blue
colorless
Birefringence
0.122
Luster
Greasy,
Adamantine
Transparency
translucent,
transparent
Pleochroism
Composition
Elements
Mass
MoO₃
38.87
PbO
60.91
Morocco (Palache et al. 1952)
Groups and Members
Scheelite-Group
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Distinct after {011}, indistinct after {001}
Fracture
conchoidal,
uneven
Tenacity
Brittle
Geomineralogical Properties
Crystal System
tetragonal
Point Group
tetragonal-dipyramidal - 4/m
Space Group
I4
1
/a (88)
Habit
leafy,
blocky,
dipyramidal,
tabular
Formation
Secondarily, in the oxidation zone of lead deposits, through the alteration of lead-bearing primary sulfides (e.g., galena)
Paragenesis
Twinning
Contact twins after {001
Rarity
Common
Synonyms
Wulfenite
