VS
Name
—
Ag(Fe,Ni)₈S₈
Formula
—
Mineral Species
Entry type
—
Sulfides
Chemical class
—
Cubic
Crystal system
—
—
Mohs hardness
—
4.66
Specific gravity
—
—
Streak
—
Metallic. R: (400) 20.4, (420) 21.0, (440) 21.9, (460) 22.9, (480) 24.2, (500) 25.6, (520) 27.2, (540) 28.8
Luster
—
Well developed on {111}
Cleavage
—
Fm3m
Space group
—
Pentlandite
Structural group
—
Apn · Approved
IMA
—
1970
Named in
—
Bronze-brown; cinnamon-brown in polished section
Typical colors
—
Ag · Fe · Ni · S
Elements
—