Card No: 12467       Created: 28/01/26    Last edition: 21/05/2026

Name: ANNINGITE-(Ce)
Specification: [1], structure type - zircon
Formula: [Ca0.5Ce0.5][VO4,PO4]
Symmetry Class: tetragonal
Space Group: *I 4(1)/amd
Unit Cell
Parameters:
a = 7.1500 | c = 6.3343
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 323.83
Number of Atomic Position
per full Unit Cell
:
P/U = 24 Molar Volume, cm3/mol: Vm = 48.76
Number of Reflexes used in
Structure Determination
:

NR = 2164
X-ray density, g/cm3: p = 3.88
R-factor: R = 0.0207MU, 1/cm: µ = 975.298
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 251.070
Theta-Interval for CPDP: T/I = 1-45