Copper Sulfide
Cu2S
Chemical name
Copper Sulfide |
Mineral name
Chalkosine |
Chemical formula
Cu2S |
Melting point [°C]
1130 |
Crystal system
monoclinic |
Space Group
P21/c (Nr. 14) |
Unit cell
a [Å]:15,25 b [Å]:11,88 c [Å]:13,49 β = 116,3° |
Molecular weight [g/mol]
159.16 |
Formula units
Z = 48 |
Mohs hardness
2,5 - 3 |
Density [g/cm3]
5,5 - 5,8 |
Cleavage
{110}, {010}, {001}, {111}, {112}, {113}, {023} |
Color
lead gray, steel gray, matt black |
Streak
dark gray |
Transparency
opaque |
Solubility in water
Insoluble |