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Changes in phlogopites during their artificial alteration

Published online by Cambridge University Press:  09 July 2018

A. C. D. Newman*
Affiliation:
Rothamsted Experimental Station, Harpenden, Hefts

Abstract

When phlogopites containing only a little iron are artificially altered with sodium tetraphenylboron solutions, the vermiculite-like products contain fewer interlayer cations than the original micas. Structural formulae of the products are calculated from the chemical analyses, together with infrared examination of the angular vibration band of water at 1650 cm−1 to distinguish between water of hydration and hydroxyl groups. The formulae obtained are consistent with the weight-loss curves and show that the products contain, more than 4(OH,F) per formula unit. The interpretation of these formulae is that the silicate layers lose net negative charge by protonation of structural oxygen anions to form new hydroxyl groups.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1967

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References

Addison, W.E. & Sharp, J.H. (1962) Clay Miner. Bull. 5, 73.Google Scholar
Angell, C.L & Schafer, P.C. (1965) J. phys. Chem. 69, 3463.Google Scholar
Bennit, H. & Hawley, W.G. (1965) Methods of Silicate Analysis., Chapter 42, Academic Press, London.Google Scholar
Bradley, W.F. & Serratosa, J.M. (1960) Clays Clay Miner. 7, 260.CrossRefGoogle Scholar
Dension, I.A., Fry, W.H. & Gile, P.L. (1929) Tech. Bull U.S. Dept. Agric. No. 128.Google Scholar
Eitel, W. (1954) The Physical Chemistry of the Silicate., Chapter E.1, p. 1390, The University of Chicago Press, Chicago, Illinois.Google Scholar
Foster, M.D. (1960) Prof. Pap. U.S. geol. Surv. No. 354-B.Google Scholar
Foster M.D., (1964) Prof. Pap. U.S. geol. Surv. No. 474-F.Google Scholar
Fripiat, J.J., Chaussidon, J. & Touillaux, R. (1960). J.phys. Chem., 64, 1234.Google Scholar
Greene-Kelly, R. & Weir, A.H. (1956) Clay Miner. Bull. 3, 68.Google Scholar
Gruner, J.W. (1934) Am. Miner. 19, 557.Google Scholar
Jeffery, P.G. & Wilson, A.D. (1960) Analyst., 85, 749.Google Scholar
King, H.G.C. & Pruden, G. (1967) Analyst., 92, 83.Google Scholar
Meyrowitz, R. (1964) Am. Miner. 49, 769.Google Scholar
Newman, A.C.D. & Brown, G. (1966) Clay Miner. 6, 297.Google Scholar
Van Olphen, H. (1965) J. colloid Sci. 20, 822.Google Scholar
Pettijohn, F.J. (1949) Sedimentary Rocks, p. 380 et seq. Harper & Brothers, New York.Google Scholar
Raman, K.V. & Jackson, M.L. (1966) Clays Clay Miner. 14, 53.Google Scholar
Rausell-Colom, J., Sweatman, T.R., Wells, C.B. & Norrish, K. (1965) Experimental Pedology. Proc. 11th School Agric. Sci. Nottingham. (Hallsworth, E. G. and Crawford, D. V., editors), p. 40. Butterworths, London.Google Scholar
Scott, A.D. & Reed, M.G. (1962) Proc. Soil Sci. Soc. Am. 26, 41.Google Scholar
Scott, A.D. & Smith, S.J. (1966) Clays Clay Miner. 14, 69.Google Scholar
Sharpiro, L. & Brannock, W. (1956) Bull. U.S. geol. Surv. No. 1036-C.Google Scholar
Waller, G.F. (1956) Clays Clay Miner. 4, 101.Google Scholar
Walker, G.F. & Garrett, W.G. (1967) Science, N.Y. 156, 385.Google Scholar