VS
Name
—
Bi₆Te₂S₃
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Hexagonal
Crystal system
—
1.5–2
Mohs hardness
—
8.1
Specific gravity
—
Black
Streak
—
Metallic
Luster
—
Perfect, on {0001}
Cleavage
—
P-3m1
Space group
—
Tetradymite
Structural group
—
Bks · Approved
IMA
—
1992
Named in
—
Steel-gray; in reflected light, bright white
Typical colors
—
Bi · Te · S
Elements
—