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Electron Microbeam Lab

X-RAY DIFFRACTOMETER (XRD)

Contact: Dr. Donggao Zhao
Phone: 512-471-1177 (O), 512-471-4949 (lab)
email: dzhao@jsg.utexas.edu


Location  GEO 5.114

 

XRD - Bruker D8

 

Overview


Installed in 2008, the Bruker D8 Advance provides routine, non-quantitative mineral identification in rock powders. The D8 XRD is now driven by automation software with integrated pattern analysis by Bruker EVA and Topas using the ICDD PDF-2 Minerals database.

Training


Samples


Samples for XRD must be carefully ground rock powders (no gritty lumps) or fine size fractions separated by centrifugation or gravity settling. Ideally, the mineral phases of interest should be present in amounts of at least several percent. Otherwise, some method of concentrating the phase will be necessary.
pentagonite
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