VS
Name
—
FeSb₂S₄
Formula
—
Mineral Species
Entry type
—
Sulfosalts
Chemical class
—
Orthorhombic
Crystal system
—
2–3
Mohs hardness
—
4.64
Specific gravity
—
Dark brownish gray
Streak
—
Metallic
Luster
—
Prismatic, indistinct
Cleavage
—
Pnma
Space group
—
Berthierite
Structural group
—
Btr · Grandfathered
IMA
—
1827
Named in
—
Dark steel-gray, commonly tarnished iridescent or pinchbeck-brown; in polished section, gray
Typical colors
—
Fe · Sb · S
Elements
—