> Can anybody help me out here by either supplying me with a
> montmorillonite structure or giving me a reference which contains one?
Dear Nicki,
Rietveld structural determination for clay minerals,
particularly the smectite group,
is a difficult task. Our group (Les Dale's at
Dear Armel,
Many thanks for your information about montmorillonite structures. You have
been very helpful.
Regards,
Nicki Agron-Olshina
-Original Message-
From: Armel Le Bail [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 17 October 2000 4:39 PM
To: [EMAIL PROTECTED]
Subject: Re: structure
And if you type "montmorillonite" into Alta Vista you immediately find a
complete article in Proc.Nat.Acad.Sci 96, 3358 (1999) by Garrison Sposito
to whom I referred earlier.
http://books.nap.edu/books/0309064260/html/3358.html
Alan Hewat, ILL Grenoble, FRANCE <[EMAIL PROTECTED]> tel (33)
At 11:50 17/10/2000, Armel wrote:
>Thanks a lot. And what if I would like to see a pretty Rietveld fit
Here are a few references that may help you find the coordinates. Sorry I
don't have time to look these up for you myself :-)
Collins D.R., Fitch A.N., Catlow C.R.A. - Dehydration of vermiculi
>The full article (with actual fitting of experimental data, will be
>published in the proccedings
Published in one or two years... Why not sending it to the
brand new Chemistry preprint server ?
http://www.chemweb.com/home
or making available a preprint at some URL of your own ?
Best
Arme
about modelling of montmorillonite and the use of the model in
quantitative analysis:
Gualtieri et al. "Quantitative phase analysis of natural raw materials
containing montmorillonite". PC01, EPDIC-7 abstract volume, p.84, 2000.
The full article (with actual fitting of experimental data, will b
At 09:03 17/10/00 +0200, Alan wrote:
>But you can find a pretty 3D drawing on
>http://www.ill.fr/dif/3D-crystals/layers.html (thanks to Garrison Sposito).
Thanks a lot. And what if I would like to see a pretty Rietveld fit on
neutron (or/and X-ray) Montmorillonite powder diffraction data ?-)
At 08:38 17/10/2000, Armel wrote:
>You cannot even find it in the mineralogy database :
But you can find a pretty 3D drawing on
http://www.ill.fr/dif/3D-crystals/layers.html (thanks to Garrison Sposito).
Further references are given on:
http://www.ill.fr/dif/3D-crystals/credits.html, and sinc
>Can anybody help me out here by either supplying me with a
>montmorillonite structure or giving me a reference which contains one?
In the Wyckoff Crystal Structures Vol. 4, p. 372 (1968) :
"The more hydrated clay minerals, such as halloysite and
montmorillonite, have been extensively studied al
