Dear Rietvelders, if you are interested in analyzing clay-bearing samples, you can find an idea at
http://www.bgmn.de/smectite.html The text of the structure description files *.str can be used in BGMN directly. People who would like to adapt this approach to other programs can find some helpful comments in these files. Reinhard Kleeberg Dr. R. Kleeberg TU Bergakademie Freiberg Institut f�r Mineralogie Brennhausgasse 14 D-09596 Freiberg Germany Tel. +49 (0) 3731-39-3244 Fax. +49 (0) 3731-39-3129
