VS
Name
—
(Ni,Cu)Al₄(NO₃,SO₄)₂(OH)₁₂·3H₂O
Formula
—
Mineral Species
Entry type
—
Nitrates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
2.3
Specific gravity
—
—
Streak
—
—
Luster
—
On {001}, perfect
Cleavage
—
—
Space group
—
Chalcoalumite
Structural group
—
Mbb · Approved
IMA
—
1979
Named in
—
Pale blue; colorless in transmitted light
Typical colors
—
Ni · Cu · Al · N · O · S · H
Elements
—