a b s t r a c t
Energy-dispersive X-ray diffraction (EDXRD) spectrometry is being investigated as a means to perform
direct on-line quantitative mineral phase analysis on industrial mineral process streams. A laboratory
prototype EDXRD analyser has been developed and a preliminary study has been made to determine its
suitability for measuring mineral samples. This was carried out by collecting the diffraction spectra of
20 samples each containing six powdered minerals in dry form and using a linear regression analysis
model to determine the mass of each mineral component contained in the samples. Using this method
it was found that mineral components could be determined to an accuracy of better than 1wt%.