VS
Name
—
Cu₆Al(SO₄)(OH)₁₂Cl·3H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Hexagonal
Crystal system
—
2
Mohs hardness
—
3.13–3.14
Specific gravity
—
Pale green
Streak
—
Vitreous
Luster
—
On {0001}, perfect; distinct on {1011}, {0111}
Cleavage
—
P31c
Space group
—
Spangolite
Structural group
—
Spg · Grandfathered
IMA
—
1890
Named in
—
Dark green, emerald-green, bluish green; pale green in transmitted light
Typical colors
—
Cu · Al · S · O · H · Cl
Elements
—