VS
Name
—
KCa(H₃O)₃(UO₂)₇(PO₄)₄O₄·8H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
2–2.5
Mohs hardness
—
4.1
Specific gravity
—
—
Streak
—
—
Luster
—
One, perfect, k flattening
Cleavage
—
Bmmb
Space group
—
Phosphuranylite
Structural group
—
Puy · Grandfathered
IMA
—
1879
Named in
—
Deep golden yellow, lemon-yellow, honey-yellow
Typical colors
—
K · Ca · H · O · U · P
Elements
—