VS
Name
—
Cu¹⁺(Fe²⁺₀.₅Sn⁴⁺₁.₅)S₄
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Tetragonal
Crystal system
—
—
Mohs hardness
—
4.79
Specific gravity
—
—
Streak
—
Metallic. Anisotropism: Distinct, from bluish gray to dark brown. R1 –R2: (400) 29.1–30.4, (420) 28.7–29.9
Luster
—
—
Cleavage
—
I4_1/a
Space group
—
Spinel
Structural group
—
Rhs · Approved
IMA
—
1968
Named in
—
Reddish
Typical colors
—
Cu · Fe · Sn · S
Elements
—