VS
Name
—
Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Triclinic
Crystal system
—
2.5–3
Mohs hardness
—
2.04–2.17
Specific gravity
—
—
Streak
—
Pearly on {010}
Luster
—
On {010}, perfect; on {101}, imperfect
Cleavage
—
P-1
Space group
—
Copiapite
Structural group
—
Cpi · Grandfathered
IMA
—
1833
Named in
—
Sulfur-yellow, golden yellow, pale yellow, yellow-orange; may be greenish yellow to olive-green in aggregates
Typical colors
—
Fe · S · O · H
Elements
—