Abstract
X-RAY examination of monazite has been carried out by Hadding1, Gliszczynski2 and Parrish3, and the space group and crystal class uniquely determined. According to Goldschmidt4, the thorium which is usually present is ‘‘captured during crystallization of the phosphate from its parent magma because of its favourable ionic size. To compensate for the increased cationic charge of the thorium ion, the resulting lattice must possess a defect structure in which some of the sets of equivalent cationic positions are only partially occupied. The quantity of thorium which can be tolerated in such a structure is not known, but monazites the thoria content of which varies from nil to at least 18 per cent (approximately 0·2 atoms per atom of rare earth element) have been reported3,5.
Similar content being viewed by others
Article PDF
References
Hadding, A., Z. anorg. Chemie, 122, 195 (1921).
Gliszcsynski, S., Z. Krist., (A), 101, 1 (1939).
Parrish, W., Amer. Min., 24, 651 (1939).
Goldschmidt, V. M., Chem. Prod., 7 (5–6), 29 (1944).
Mellor, J. W., "A Comprehensive Treatise on Inorganic and Physica Chemistry", 5, 526 (Longmans, London).
Hassell, O., "Crystal Chemistry", trans. Evans, R. C, 11, 24, 28 (Heinemann, London, 1935).
Marshall, C. E., Z. Krist., (A), 91, 433 (1935); J. Soc. Chem. Ind., 54. 393 (1935).
Shin Hata, Sci. Papers Inst. Phys. Chem. Res. (Tokyo), 34, 619 (1938).
Eakle, A. S., and Rogers, A. F., Amer. J. Sci., 37, 262 (1914).
McConnell, D., Amer. Min., 22, 977 (1937).
Shin Hata, Sci. Papers Inst. Phys. Chem. Res. (Tokyo), 34, 1018 (1938).
Wells, A. F., "Structural Inorganic Chemistry", 418 (Oxford Univ. Press, London, 1935).
Pauling, L., "The Nature of the Chemical Bond", 240 (Cornell Univ. Press, New York, 1940).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
WYLIE, A. Constitution of Monazite. Nature 161, 97 (1948). https://doi.org/10.1038/161097a0
Issue Date:
DOI: https://doi.org/10.1038/161097a0
This article is cited by
-
Mineralogical and geochemical studies on Egyptian (U.A.R.) black sands
Beitr�ge zur Mineralogie und Petrographie (1964)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.