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An X-ray powder method for the estimation of (K, Ba) feldspars
1965
Mineralogical Magazine and Journal of the Mineralogical Society
Examination of previous physical methods of estimating the barium-content of these feldspars showed that they are generally unsatisfactory. A new variation diagram is constructed correlating BaO content and values of d 132 determined from diffractometer records. It is estimated that the BaO content of these feldspars can normally be determined to about 2–3% by using this diagram. Some of the problems of the mineralogy of the series are reviewed in the light of the experimental results, in
doi:10.1180/minmag.1965.034.268.16
fatcat:4hx2rzqozzdmxfj5fphgzm34ea