VS
Name
—
Ca₂(UO₂)₃O₂(PO₄)₂·7H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
2.5–3
Mohs hardness
—
4.22
Specific gravity
—
Pale yellow
Streak
—
Vitreous to adamantine, may be silky in aggregates
Luster
—
{010}, {001}, perfect to good; {100}, good
Cleavage
—
Pbca
Space group
—
Phosphuranylite
Structural group
—
Phu · Approved
IMA
—
1977
Named in
—
Yellow
Typical colors
—
Ca · U · O · P · H
Elements
—