Stibnite
ID: 49
Stibnite
Chemical Formula
Sb₂S₃
Hardness (Mohs)
2
Crystal System
Orthorhombic
Streak
lead gray
Luster
Metallic
Diaphaneity
opaque
Color
Lead-gray with pale blue tint
Density
4.63
Fun Facts
Its beautifully elongated, striated crystals, sometimes resembling bundles of needles, are highly prized by mineral collectors, though they are quite fragile.