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Kaersutite from San Carlos, Arizona, with comments on the paragenesis of this mineral

Published online by Cambridge University Press:  14 March 2018

Brian Mason
Brian Mason*
Affiliation:
U.S. National Museum, Washington, D.C.
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Summary

A 230 g kaersutite xenocryst from basalt at San Carlos, Arizona, has the composition SiO2 40·10 %, TiO2 4·44, Al2O3 14·53, Fe2O3 3·24, FeO 10·05, MnO 0·14, MgO 11·00, CaO 11·06, Na2O 2·99, K2O 1·62, H2O + 0·73, H2O − 0·10; D = 3·28; α 1·680, β 1·700, γ 1·715; a 9·858 Å, b 18·063 Å, c 5·315 Å, β 105° 14′. Kaersutite occurring as xenocrysts in basic volcanic rocks and tuffs, and as a phase in garnet-pyroxene xenoliths from such rocks, is probably of upper mantle origin, and may be the important potassium-bearing phase in this region.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 36 , Issue 283 , September 1968 , pp. 997 - 1002
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1968

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References

Aoki, (K.), 1963. Journ. Petrology, vol. 4, p. 198.CrossRefGoogle Scholar
Boyd, (F. R.), 1959. Researches in geochemistry (ed. Abelson, P. H.), p. 377. New York (John Wiley & Sons).Google Scholar
Chayes, (F.), 1965. Min. Mag., vol. 34, p. 126.Google Scholar
Deer, (W. A.), Howie, (R. A.), and Zussman, (J.), 1963. Rock-forming minerals, vol. 2, chain silicates. New York (John Wiley & Sons).Google Scholar
Dickey, (J. S.), 1968. Amer. Min., vol. 53, in press.Google Scholar
Green, (T. H.) and Ringwood, (A. E.), 1968. Earth Planet. Sci. Lett., vol. 3, p. 481.Google Scholar
Kempe, (D. R. C.), 1968. Min. Mag., vol. 36, p. 874.Google Scholar
Lausen, (C.), 1927. Amer. Journ. Sci., ser. 4, vol. 14, p. 293.Google Scholar
Mason, (B.), 1966a. New Zealand Journ. Geol. Geophys., vol. 9, p. 474.Google Scholar
Mason, (B.), 1966b. Nature, vol. 211, p. 616.Google Scholar
Oxburgh, (E. R.), 1964. Geol. Mag., vol. 101, p. 1.Google Scholar
Wilkinson, (J. F. G.), 1961. Amer. Min., vol. 46, p. 340.Google Scholar