Card No: 6347       Created: 17/02/2005    Last edition: 21/04/2017

Name: PALYGORSKITE
Specification: [5], DN
Formula: (Mg,Al)4Si8[O,OH,H2O]26 · 5H2O
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 13.3370 | b = 17.8790 | c = 5.2640 | beta = 105.2700
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1210.90
Number of Atomic Position
per full Unit Cell
:
P/U = 160 Molar Volume, cm3/mol: Vm = 364.68
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.33
R-factor: R = 0.0369MU, 1/cm: µ = 63.907
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 27.483
Theta-Interval for CPDP: T/I = 1-45