VS
Name
—
KFe³⁺(SO₄)₂·4H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
2.43
Specific gravity
—
White
Streak
—
Vitreous
Luster
—
On {100}, perfect
Cleavage
—
P2_1/c
Space group
—
—
Structural group
—
Gol · Grandfathered
IMA
—
1955
Named in
—
Pale yellowish green, with a lavender tint under artificial light
Typical colors
—
K · Fe · S · O · H
Elements
—