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Zitat von George DeTitta <[log in to unmask]>: > I'd appreciate it if people could tell me their experiences with what I > would call "phantom crystals", or "ghost crystals". These are objects > that display the seeming morphology of crystals (clear facets, sharp > edges) ... There is also a second type of "ghost crystals", those which do not have edges at all, with a ball- or egg-like apearance and which diffract perfectly well! but do not diffract X-rays AT ALL. I would not count objects > that diffract to 30 A in this category. I mean objects that don't show > a single Bragg spot. > > > > George T. DeTitta, Ph.D. > > Principal Research Scientist > > Hauptman-Woodward Institute > > Professor and Chairman > > Department of Structural Biology > > SUNY at Buffalo > > 700 Ellicott Street Buffalo NY 14203-1102 USA > > (716) 898-8600 (voice) > > (716) 898-8660 (fax) > > www.hwi.buffalo.edu <http://www.hwi.buffalo.edu> > > > >