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Clay minerals and bauxitic minerals. A review and classification based on a statistical method

Published online by Cambridge University Press:  14 March 2018

S. I. Tomkeieff*
Affiliation:
Armstrong College, University of Durham, Newcastle-on-Tyne

Summary

A statistical study of clay and bauxitic minerals, which consisted of plotting all available analyses of these minerals on two triangular diagrams (figs. 1 and 7) and constructing frequency curves for the cardinal ratios, led to a classification of these minerals on a purely chemical basis. The suggestion is also made that among substances claimed to be minerals we can select only a few as belonging to definite mineral species, and that the others are probably mixtures of these selected minerals, or their hydration products, or colloidal hydrates of variable composition. The distinct crystalline mineral species thus singled out are as follows :

Besides these minerals, other substances, such as termierite, anauxite, allophane, &c., are suggested as probable species, without, however, any clear statistical evidence. The bentonitic minerals, not belonging strictly to the pure hydrous aluminium silicates, are placed in a separate group.

In conclusion, I should like to thank Dr. G. Hickling and Mr. G. S. Mockler for reading the MS. of this paper and for their valuable suggestions.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1933

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References

page 464 note 1 Wherry, E. T., Amer. Min., 1925, vol 10, p. 140.Google Scholar

page 468 note 1 Hermann, R., Ann. Phys. Chem. (Poggendorff), 1829, vol. 15, p, 592.CrossRefGoogle Scholar

page 468 note 2 Loewinson-Lessing, F., Journ. Russ. Min. Soc., 1895, vol. 33, p. 283.Google Scholar

page 468 note 3 Baur, E., Zeits. Physikal. Chem., 1903, vol. 42, p. 567 Google Scholar ; and Zeits. Anorg. Chem., 1911, vol. 72, p. 119. M. Schlaepfer and P. Niggli, Zeits. Anorg. Chem., 1914, vol. 87, p. 52.

page 470 note 1 C. S. Ross and E. V. Shannon, Journ. Amer. Ceramic Sot., 1926, vol. 9, p. 77

page 470 note 2 Heide, F., Chemic der Erde, 1927, vol. 3, p. 91.Google Scholar

page 471 note 1 Allen, V. T., Amer. Min., 1925, vol. 13, p. 145.Google Scholar [Min. Abstr., vol. 3, p. 370.]

page 471 note 2 C. S. Ross and P. F. Kerr, Prof. Paper, U.S. Geol Survey, 1931, no. 165-E. [M.A. 5-359.]

page 471 note 3 Ross, C. S. and Foshag, W. F., Amer. Min., 1928, vol. 13, p. 153.Google Scholar [M.A. 3-488.]

page 471 note 4 Dittler, E. and Hibsch, J. E., Min. Petr. Mitt. (Tsehermak), 1923 vol. 36, p. 85.Google Scholar [M.A. 2-306.]

page 471 note 5 Larsen, E. S. and Wherry, E. T., Journ. Washington Acad. Sci., 1925, vol 15, p. 465.Google Scholar [M.A. 3-8.]

page 471 note 6 Ross, C. S. and Shannon, E. V., Journ. Washington Acad. Sci., 1925, vol. 15, p. 467.Google Scholar [M.A. 3-8.]

page 472 note 1 C. s. Ross and P. F. Kerr, Amer. Miu., 1930, vol. 15, p. 34; and Journ. Sedimentary Petr., 1931, vol. 1, p. 55 ; loc. cit., 1931. [M.A. 4-247, 5-359.]

page 473 note 1 Mellor, J. W., Trans. Ceramic Soc., 1917, vol. 16, p. 73 Google Scholar

page 473 note 2 Foshag, W. F., Amer. Min., 1926, vol. 11, p. 33.Google Scholar [M,A. 3-351.]

page 473 note 3 S. Kôzu, K. Seto, and K, Kinoshita, Journ. Geol. Soe. Tokyo, 1922, vol. 29, pp. 1, 148. [M.A. 2-51. 521.]

page 474 note 1 Termier, P., Compt. Rend. Acad. Sci. Paris, 1889, vol. 108, p. 1071 Google Scholar

page 474 note 2 Larsen, E. S. and Wherry, E. T., Journ. Washington Acad. Sci., 1917, vol. 7, p. 208.Google Scholar [M.A. 2-133.]

page 474 note 3 E. V. Shannon, Proc. U.S. Nat. Mus., 1922, vol. 62, art. 15. [M.A. 2-134.]

page 474 note 4 C. S. Corbett, Amer. Journ. Sci., 1925, ser. 5, vol. 10, p. 247. [M.A. 3-382.]

page 477 note 1 J. de Lapparent, Les bauxites de la France möridionale. Mém. Carte Géol. France, Paris, 1930.

page 477 note 2 A. Lacroix, Minéralogie de Madagascar. Paris, 1923, vol. 3.

page 477 note 3 Fermor, L. L., Geol. Mag., 1915. dee. 6, vol. 2, pp. 28, 77, 123.CrossRefGoogle Scholar

page 478 note 1 Edwards, M. G., Econ. Geol., 1914, vol. 9, p. 112 CrossRefGoogle Scholar

page 479 note 1 Berthier, P., Ann. des Mines, 1821, vol. 6, p. 531.Google Scholar

page 479 note 2 Rao, T. V.M., Min. Mag., 1928, vol. 21, p. 407.CrossRefGoogle Scholar

page 480 note 1 P. Neogi and A. K. Mitra, Journ. Chem. Soc. London, 1927, part 1, p. 1222.

page 480 note 2 J. Böhm, Zeits. Anorg. Chem., !925, vol. 149, p. 311. [M.A. 3-430.]