Card No: 12225       Created: 25/10/24    Last edition: 02/04/2026

Name: RETZIAN-(La)
Specification: [1], structure type - retzian
Formula: (Mn,Mg)2(La,Ce,Nd)[AsO4](OH)4
Symmetry Class: orthorhombic
Space Group: *P ban
Unit Cell
Parameters:
a = 5.6700 | b = 12.0100 | c = 4.8690
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 331.56
Number of Atomic Position
per full Unit Cell
:
P/U = 24 Molar Volume, cm3/mol: Vm = 99.86
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 4.32
R-factor: -MU, 1/cm: µ = 776.471
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 179.918
Theta-Interval for CPDP: T/I = 1-45