VS
Name
—
Cu(UO₂)₂(SO₄)₂(OH)₂·8H₂O
Formula
—
Mineral Species
Entry type
—
Sulfates
Chemical class
—
Triclinic
Crystal system
—
2–2.5
Mohs hardness
—
3.32
Specific gravity
—
Pale green
Streak
—
Vitreous
Luster
—
On {100}, good
Cleavage
—
P-1
Space group
—
Johannite
Structural group
—
Jh · Grandfathered
IMA
—
1830
Named in
—
Dark emerald-green, dark green, grass-green, apple-green, yellowish green; pale green in transmitted light
Typical colors
—
Cu · U · O · S · H
Elements
—