Silver Sulfide monoclinic type
Ag2S
|
Chemical name
Silver Sulfide monoclinic type |
|
Mineral name
Acanthite |
|
Chemical formula
Ag2S |
|
Melting point [°C]
825 |
|
Crystal system
monoclinic |
|
Crystal Class
monoclinic-prismatic (2/m) |
|
Space Group
P2_1/n |
|
Unit cell
a [Å]:4.23 b [Å]:6.93 c [Å]:7.86 |
|
Molecular weight [g/mol]
247,8 |
|
Formula units
Z=4 |
|
Twinning
polysynthetic twins on {111} |
|
Mohs hardness
2.0 - 2.5 |
|
Density [g/cm3]
7.3 |
|
Cleavage
indistinct |
|
Fracture / Tenacity
uneven |
|
Color
iron-black |
|
Streak
black |
|
Transparency
opaque |
|
Luster
metallic |
