VS
Name
—
Ca(UO₂)₆O₄(OH)₆·8H₂O
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Orthorhombic
Crystal system
—
2.5
Mohs hardness
—
5.09–5.2
Specific gravity
—
Yellow
Streak
—
Adamantine to greasy
Luster
—
{001} perfect; {101}, {010}, and {110} imperfect
Cleavage
—
Pn2_1a
Space group
—
—
Structural group
—
Bqr · Grandfathered
IMA
—
1922
Named in
—
Amber-yellow, golden to lemon-yellow, yellow- orange, brownish yellow; yellow in transmitted light
Typical colors
—
Ca · U · O · H
Elements
—