VS
Name
—
{Cu₉Al[SiO₃(OH)]₂(OH)₁₂(H₂O)₆}(SO₄)₁.₅·10H₂O
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
2.528
Mohs hardness
—
2.528
Specific gravity
—
Pale green
Streak
—
Vitreous
Luster
—
Perfect on {001}
Cleavage
—
R-3
Space group
—
Chalcophyllite
Structural group
—
Tbd · Approved
IMA
—
2016
Named in
—
Green
Typical colors
—
Cu · Al · Si · O · H · S
Elements
—