VS
Name
—
Bi₃TeSe₂
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Hexagonal
Crystal system
—
—
Mohs hardness
—
8.1
Specific gravity
—
Black
Streak
—
Metallic. Anisotropism: Moderate. Bireflectance: Noticeable in oil, yellowish white to gray
Luster
—
Perfect on {001}
Cleavage
—
P-3m1
Space group
—
Tetradymite
Structural group
—
Tnvk · Approved
IMA
—
1993
Named in
—
Steel-gray, white with yellow tint in reflected light
Typical colors
—
Bi · Te · Se
Elements
—