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Factors Limiting the use of Standard Minerals in the X-Ray Diffraction Analysis of Clays*

Published online by Cambridge University Press:  06 March 2019

Lowell A. Douglas
Lowell A. Douglas*
Affiliation:
Dept. of Soils and Crops, Rutgers University, New Brunswick, New Jersey 08903
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Abstract

In the quantitative x-ray diffraction analysis of clays, “standard“ clays are compared with “unknowns” assuming both Standards and unknowns have similar diffraction characteristics. This assumption is valid in certain cases involving kaolinites, chlorites, vermiculites, and where standards have been obtained from the unknown clays. In other cases; especially those involving smectites, illites, and some chlorites and vermiculites; lack of hornogeneity within mineral species and inability to measure this inhomogeneity in mixed mineral suites limits the accuracy obtainable by diffraction methods.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 17: Twenty-Second Annual Conference on Applications of X-ray Analysis, August 22-24, 1973 , 1973 , pp. 88 - 96
Copyright
Copyright © International Centre for Diffraction Data 1973

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Footnotes

*

Journal series paper of the New Jersey Agricultural Experimental Station.

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