VS
Name
—
Co(SO₄)·7H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
2
Mohs hardness
—
1.96
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
On {001}, perfect; on {110}, fair
Cleavage
—
P2_1/c
Space group
—
Melanterite
Structural group
—
Bie · Grandfathered
IMA
—
1845
Named in
—
Rose-red, flesh-red; in transmitted light, pale rose-red to colorless
Typical colors
—
Co · S · O · H
Elements
—