VS
Name
—
(Ni₁₋ₓFe³⁺ₓ)(SO₄)ₓ/₂(OH)₂·nH₂O (x 3x/2)
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Hexagonal
Crystal system
—
—
Mohs hardness
—
2.96
Specific gravity
—
—
Streak
—
[Adamantine.]
Luster
—
—
Cleavage
—
—
Space group
—
Woodwardite, Hydrotalcite
Structural group
—
Hhon · Approved
IMA
—
1980
Named in
—
Bright yellow; bright yellow in transmitted light
Typical colors
—
Ni · Fe · S · O · H
Elements
—