Summary
Monazite is commonly believed to be a nonmetamict mineral. The results of the published X-ray examination of monazite do not unambiguously support this belief. The results of the present investigation on four different samples of monazite of known thorium content show that the thorium-containing monazite occur in a fairly high degree of metamictization. The results of the petrological examination also support this conclusion.
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Communicated by Prof. H. J. Bhabha
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Karkhanavala, M.D., Shankar, J. An X-ray study of natural monazite: I. Proc. Indian Acad. Sci. 40, 67–71 (1954). https://doi.org/10.1007/BF03048708
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DOI: https://doi.org/10.1007/BF03048708