Copper Sulfide:CuS

CuS

Copper Sulfide:CuS - CuSCopper Sulfide:CuS - CuSCopper Sulfide:CuS - CuS
Chemical name
Copper Sulfide:CuS
Mineral name
Covellite
Chemical formula
CuS
Crystal system
hexagonal
Crystal Class
Dihexagonal dipyramidal (6/mmm) H–M Symbol (6/m 2/m 2/m)
Unit cell
a [Å]:3.80
b [Å]:-
c [Å]:16.36
Formula units
Z=6
Mohs hardness
1.5 - 2
Cleavage
Perfect on {0001}
Fracture / Tenacity
Flexible
Color
Indigo-blue or darker, commonly highly iridescent, brass-yellow to deep red
Streak
Lead gray
Luster
Submetallic, inclining to resinous to dull
Refractive Index
nω = 1.450, nε = 2.620
Pleochroism δ
Marked, deep blue to pale blue
Other
Micaceous cleavage