Dear Riza: I think you have not a crystallographic problem; it is a chemical problem. Perhaps you must revise your chemical syntesis. It seems to me you get some impurity phase probably with alumina.
Good luck. Yours sincerely, Jose M. Amigo University of Valencia Department of Geology 46100 - Burjassot, SPAIN > Dear Colleagues, > > I have been doing some research on alumina, especially beta- alumina. Can > anyone give me some information about these crystallography properties > such as atomic position and cell parameters? Every time I do some > refinement I always get this kind of problems, lack of information about > crystallography properties. Does anyone can suggest me where I can find > this information? Especially on Internet, recently I used ICSD, anyone > know another resources? > > Riza Iskandar > Research Center for Materials Science > University of Indonesia > > > > >
