VS
Name
—
Fe³⁺(SO₄)(OH)·5H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Hexagonal
Crystal system
—
2.5
Mohs hardness
—
1.84–2.09
Specific gravity
—
—
Streak
—
Pearly, silky in aggregates
Luster
—
On {001}, perfect
Cleavage
—
R-3
Space group
—
—
Structural group
—
Ffr · Grandfathered
IMA
—
1833
Named in
—
Pale yellow, straw-yellow, yellowish green, greenish gray, nearly white
Typical colors
—
Fe · S · O · H
Elements
—