VS
Name
—
Ni(SeO₃)·2H₂O
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Monoclinic
Crystal system
—
2–2.5
Mohs hardness
—
3.37
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
On {110} and {103}, fair
Cleavage
—
P2_1/n
Space group
—
Cobaltomenite
Structural group
—
Afe · Grandfathered
IMA
—
1935
Named in
—
Pale green, apple-green, olive-green; brown, brownish pink, becoming pink with increasing cobalt content
Typical colors
—
Ni · Se · O · H
Elements
—