VS
Name
—
Pb₃₊ₓ[(UO₂)₄O₄₊ₓ(OH)₃₋ₓ]₂·2H₂O
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Orthorhombic
Crystal system
—
4–5
Mohs hardness
—
6.98–7.4
Specific gravity
—
Orange
Streak
—
Adamantine
Luster
—
{100}
Cleavage
—
Pnam
Space group
—
—
Structural group
—
Cui · Grandfathered
IMA
—
1921
Named in
—
Deep to pale red-orange, orange, scarlet, may be black with included oxides
Typical colors
—
Pb · U · O · H
Elements
—