VS
Name
—
Cu₄Mn²⁺(SO₄)₂(OH)₆·4H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
3
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
On {100}, perfect
Cleavage
—
C2
Space group
—
Devilline
Structural group
—
Cpg · Approved
IMA
—
1981
Named in
—
Pale blue; pale greenish blue in transmitted light
Typical colors
—
Cu · Mn · S · O · H
Elements
—