VS
Name
—
Fe³⁺₂(SO₄)₃·7H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
2.306
Specific gravity
—
—
Streak
—
Silky if fibrous
Luster
—
On {100}
Cleavage
—
P2_1/n
Space group
—
—
Structural group
—
Knl · Grandfathered
IMA
—
1888
Named in
—
Pale rose-pink to violet under artificial light
Typical colors
—
Fe · S · O · H
Elements
—