The Accuracy of X-Ray Diffraction Methods for Determining Mineral Mixtures

Covadonga Brime
Departamento de Cristalografía y Mineralogia, Facultad de Geologia, Universidad de Oviedo, Oviedo, Spain

Abstract: An X-ray diffraction method has been successfully applied to the quantitative determination of mineral mixtures. The absorptive properties of the samples and the number of components determine the analytical procedure to be used. The methods described (external standard plus empirical determination of the mass attenuation coefficient) provides an accurate and rapid alternative to the direct measurement of the mass attenuation, Compton diffusion or internal standard methods. The relative accuracy obtained is of the order of 10% at the 0.1% level, independent of the sample composition.

Keywords: X-ray diffraction • mineral mixtures • mass attenuation coefficient

Mineralogical Magazine; September 1985 v. 49; no. 353; p. 531-538; DOI: 10.1180/minmag.1985.049.353.06
© 1985, The Mineralogical Society
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