I'm searching for people who quantify ordinary Portland cements
and clinkers, high alumina cements or gypsum, bassanite and anhydrite with 
the help of the Rietveld method. Please contact me via e-mail.
Cheers,
Juergen
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Juergen Neubauer
Institut fuer Mineralogie
Schlossgarten 5a       Tel. 09131/853986
91054 Erlangen        Fax. 09131/853734