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Synthetic soda-free thomsonite

Published online by Cambridge University Press:  14 March 2018

Julian R. Goldsmith
Julian R. Goldsmith*
Affiliation:
Department of Geology, University of Chicago
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Extract

X-ray powder photographs reveal thomsonite a.s the principal product of some low-temperature hydrothermal experiments. Glasses of three compositions were used as starting materials; one of tile composition of anorthite (CaAl2Si2O8), one of a gallium-containing anorthite (Ca4[Ga3Al5]Si8O32) in which 3/8 of the Al is replaced by Ga, and a glass of the oxide composition of zoisite minus the water (4CaO. 3Al2O3. 6SiO2).

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 29 , Issue 218 , September 1952 , pp. 952 - 954
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1952

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References

page 952 note 1 Goldsmith, J. R., Gallium and germanium substitutions in synthetic feldspars. Journ. Geol. Chicago, 1950, vol. 58, pp. 518–536 CrossRefGoogle Scholar. [M.A. 11–326.]

page 952 note 2 Winchell, A. N., A new theory of the composition of the zcolitcs. Amer. Min., 1925, vol. 10, pp. 88–97 Google Scholar, 166–174. [M.A. 3–13.]; Elements of optical mineralogy. Fourth edition, 1951, pt. 2. [M.A. 11463.]

page 952 note 3 Hey, M. H., Studies on the zeolite.s. Part II. Thomsonite (including faroclite) and gonnardite. Min. Mag., 1932, vol. 23, pp. 51–125 Google Scholar.

page 952 note 4 Wherry, E. T., Note on the composition of thomsonite. Amer. Min., 1923, vol. 8, pp. 121–125 Google Scholar. [M.A. 2–302.]

page 952 note 5 Gordon, G., The composition of thomsonite. Proc. Acad.: Nat. Sci. Philadelphia, 1924, vol. 76, pp. 103–107.Google Scholar [M.A. 2–528.]

page 953 note 1 Taylor, W. H., Meek, C. A., and Jackson, W. W., The structures of the fibrous zeolites. Zeits. Krist., 1933, vol. 84, pp. 373–398 Google Scholar. [M.A. 5–354.]