Card No: 11858       Created: 25/04/23    Last edition: 05/04/2026

Name: PERRIERITE-(Ce)
Specification: [1]
Formula: (Ce,Ca)4(Fe,Zr)3(Ti,Al,Nb)2[Si2O7]2O8
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 13.6348 | b = 5.6484 | c = 11.7194 | beta = 113.7000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 826.22
Number of Atomic Position
per full Unit Cell
:
P/U = 70 Molar Volume, cm3/mol: Vm = 248.83
Number of Reflexes used in
Structure Determination
:

NR = 1859
X-ray density, g/cm3: p = 4.51
R-factor: R = 0.0260MU, 1/cm: µ = 1042.562
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 230.927
Theta-Interval for CPDP: T/I = 1-45