Lukasz Kruszewski
Hello! I'm not conversant with Raman spectroscopy, but I wouldn't recommend
EDS analyses for precisely establishing chemical composition, especially if
You mean analyzing the 3D (not thin section) samples scanning electron
microscope equipped with EDS - it would just be laden with error connected
especially with the part of background. I've been trying to recalculate some
EDS analyses performed on SEM and only at times it was more or less
approximate. EMPA is a very good tool for chemical analyses in microarea,
especially for garnets (as its chemical zoning can be analysed very
precisely), but good results can sometimes be obtained also for 'difficult'
(i.e. fine-grained) minerals like clay minerals. I think the best way for
defining the unit cell parameters would be to get them from PXRD of the
samples, i.e. using TOPAS program.
With best regards,
