Card No: 1651       Created: 21/06/1997    Last edition: 25/02/2022

Name: GALLOBEUDANTITE
Specification: [1], "distorted" structure type - alunite, DF
Formula: PbGa3[AsO4SO4](OH)6
Symmetry Class: trigonal
Space Group: R 3m
Unit Cell
Parameters:
a = 7.2250 | c = 17.0300
Number of Formula Unit: Z = 3Unit Cell Volume, Å3: Vc = 769.88
Number of Atomic Position
per full Unit Cell
:
P/U = 75 Molar Volume, cm3/mol: Vm = 154.58
Number of Reflexes used in
Structure Determination
:

NR = 1290
X-ray density, g/cm3: p = 4.82
R-factor: R = 0.0780MU, 1/cm: µ = 546.474
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 113.384
Theta-Interval for CPDP: T/I = 1-45