Card No: 1168       Created: 03/05/1988    Last edition: 13/01/2009

Name: DICKITE
Specification: [1]
Formula: Al2[Si2O5](OH)4
Symmetry Class: monoclinic-beta
Space Group: C c
Unit Cell
Parameters:
a = 5.1500 | b = 8.9400 | c = 14.4240 | beta = 96.7300
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 659.52
Number of Atomic Position
per full Unit Cell
:
P/U = 52 Molar Volume, cm3/mol: Vm = 99.31
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.56
R-factor: -MU, 1/cm: µ = 77.347
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 30.231
Theta-Interval for CPDP: T/I = 1-45