VS
Name
—
Fe(OH)₂
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Hexagonal
Crystal system
—
3.5–4
Mohs hardness
—
2.92–2.98
Specific gravity
—
—
Streak
—
—
Luster
—
Poor, observed in some grains
Cleavage
—
R-3m
Space group
—
Brucite
Structural group
—
Amk · Approved
IMA
—
1962
Named in
—
Pale green to yellow-green; rapidly turns brown when exposed to air, due to formation of Fe(OH)3
Typical colors
—
Fe · O · H
Elements
—