VS
Name
—
Cu₂FeSnS₄
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Tetragonal
Crystal system
—
4
Mohs hardness
—
4.3–4.5
Specific gravity
—
Blackish
Streak
—
Metallic
Luster
—
Indistinct on {110} and {001}
Cleavage
—
I-42m
Space group
—
Sphalerite, Stannite
Structural group
—
Stn · Grandfathered
IMA
—
1832
Named in
—
Steel-gray to iron-black, may tarnish blue; in polished section gray with olive-green tinge
Typical colors
—
Cu · Fe · Sn · S
Elements
—