Antimonite
Sb2S3
|
Chemical name
Antimonite |
|
Mineral name
Stibnite |
|
Chemical formula
Sb2S3 |
|
Crystal system
Orthorhombic |
|
Space Group
Pbnm |
|
Unit cell
a [Å]:11,229 b [Å]:11,31 c [Å]:3,8389 |
|
Molecular weight [g/mol]
339.714 |
|
Twinning
Rare |
|
Mohs hardness
2 |
|
Density [g/cm3]
4,625 g·cm-3 |
|
Cleavage
Perfect and easy on {010}; imperfect on {100} and {110} |
|
Fracture / Tenacity
Highly flexible but not elastic; slightly sectile |
|
Color
Lead-gray, tarnishing blackish or iridescent; in polished section, white |
|
Streak
Similar to color |
|
Luster
Splendent on fresh crystals surfaces, otherwise metallic |
|
Other
Anisotropism: Strong |
|
Solubility in water
decomposed with hydrochloric acid |
