VS
Name
—
K₆(Fe,Cu,Ni)₂₅S₂₆Cl
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Cubic
Crystal system
—
3.5
Mohs hardness
—
—
Specific gravity
—
—
Streak
—
Submetallic. R: (400) 17.5, (420) 18.3, (440) 19.1, (460) 20.0, (480) 20.8, (500) 21.6, (520) 22.3, (540) 22.9
Luster
—
—
Cleavage
—
Pm-3m
Space group
—
Djerfisherite
Structural group
—
Djr · Approved
IMA
—
1965
Named in
—
Greenish yellow, close to khaki, to olive-drab
Typical colors
—
K · Fe · Cu · Ni · S · Cl
Elements
—