VS
Name
—
Sb₂S₃
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Orthorhombic
Crystal system
—
2
Mohs hardness
—
4.63
Specific gravity
—
Lead-gray
Streak
—
Metallic, splendent on cleavage surfaces. Anisotropism: Strong. R1 –R2: (400) 31.1–53, 3, (420) 30.8–53.2
Luster
—
Perfect and easy on {010}; imperfect on {100} and {110}
Cleavage
—
Pbnm
Space group
—
Stibnite
Structural group
—
Sbn · Grandfathered
IMA
—
1832
Named in
—
Gray
Typical colors
—
Sb · S
Elements
—