VS
Name
—
CoAs₂
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Orthorhombic
Crystal system
—
4.5–5
Mohs hardness
—
7.2
Specific gravity
—
Grayish black
Streak
—
Metallic
Luster
—
Distinct on {100}
Cleavage
—
Pnnm
Space group
—
Löllingite
Structural group
—
Saf · Grandfathered
IMA
—
1835
Named in
—
Tin-white, readily tarnishes to dark gray; in polished section, white
Typical colors
—
Co · As
Elements
—