Card No: 12248       Created: 14/02/25    Last edition: 01/04/2026

Name: FERRIPERBOEITE-(La)
Specification: [1], structure type - perboite, DF
Formula: Ca(La,Ce)3[Fe3+Al2Fe2+]Si2O7[SiO4]3O(OH)2
Symmetry Class: monoclinic-beta
Space Group: P 2(1)/m
Unit Cell
Parameters:
a = 8.9458 | b = 5.7297 | c = 17.6192 | beta = 115.9000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 812.05
Number of Atomic Position
per full Unit Cell
:
P/U = 76 Molar Volume, cm3/mol: Vm = 244.56
Number of Reflexes used in
Structure Determination
:

NR = 2532
X-ray density, g/cm3: p = 4.55
R-factor: R = 0.0355MU, 1/cm: µ = 1045.422
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 229.964
Theta-Interval for CPDP: T/I = 1-45