VS
Name
—
CuFe³⁺(SO₄)₂(OH)·4H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
2.69–2.72
Specific gravity
—
Pale canary-yellow
Streak
—
Vitreous
Luster
—
Perfect on {001} and {100}
Cleavage
—
P2_1/m
Space group
—
—
Structural group
—
Gdi · Grandfathered
IMA
—
1928
Named in
—
Honey-yellow, deep chestnut-brown
Typical colors
—
Cu · Fe · S · O · H
Elements
—