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Minerals - Enargite | TerraCollect
Mineral - Enargite
Enargite
Cuâ‚‚CuAsSâ‚„
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
none
Formula
Cuâ‚‚CuAsSâ‚„
Unit Cell
a=7.41 b=6.44 c=6.15 Z=2
Physical Properties
Hardness
3
Streak
black
gray
gray black
Optical Properties
Color
black
gray
Birefringence
Luster
Metallic
Transparency
opaque
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Composition
Elements
Mass
Cu
47.96
Fe
1.22
Zn
0.57
As
18.16
S
32.21
Chile (Palache et al. 1952)
Karten-Ebenen
Geologische Karte
Satelliten Karte
Density
Heavy (3,5-6)
Cleavage
Perfect after {110}, imperfect after {100} and {010}
Fracture
uneven
Tenacity
Brittle
orthorhombic-pyramidal - mm2
Space Group
Pmn2
1
(31)
Habit
prismatic,
tabular
Formation
hydrothermal
Paragenesis
Twinning
Star-shaped interpenetration twins after {320}
Rarity
Rather rare
Synonyms
Enargite
