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Coexisting silimanite and mullite

Published online by Cambridge University Press:  01 May 2009

W. E. Cameron
W. E. Cameron
Affiliation:
Department of Mineralogy and PetrologyDowning PlaceCambridge CB2 3EW
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Summay

In three assemblages of widely differing paragenesis, sillirnanite and mullite have been found in apparently stable coexistence. This is interpreted as evidence for the presence of a miscibility gap between the two phases. A fourth occurrence, remini-scent of the early hydrothermal syntheses, is metastable.

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Articles
Information
Geological Magazine , Volume 113 , Issue 6 , November 1976 , pp. 497 - 514
Copyright
Copyright © Cambridge University Press 1976

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References

Agrell, S. O. & Langley, J. M. 1958. The dolerite plug at Tievebulliagh, near Cushendall, Co. Antrim. Proc. R. Jr. Acad. 59, 93–127.Google Scholar
Allen, V. T. 1948. Formation of bauxite from basaltic rocks of Oregon. Econ. Geol. 43, 619–26.CrossRefGoogle Scholar
Aramaki, S. 1961. Sillimanite and cordierite from volcanic xenoliths. Am. Miner. 46, 1154–65.Google Scholar
Bailey, E. B., Clough, C. T., Wright, W. B., Richey, J. E. & Wilson, G. V. 1924. Tertiary and post-Tertiary geology of Mull, Loch Aline and Oban. Mem. geol. Surv. Scotland, 445 pp.Google Scholar
Butler, B. C. M. 1961. Metamorphism and metasomatism of rock of the Moine Series by a dolerite plug in Glenmore, Ardnamurchan. Mineralog, Mag. 32, 866–97.Google Scholar
Cameron, W. E. 1976. A mineral phase intermediate in composition between sillimanite and mullite. Am. Miner. (in the press).Google Scholar
Cameron, W. E. & Ashworth, J. R. 1972. Fibrolite and its relationship to sillimanite. Nature Phys. Sci. 235, 134–6.CrossRefGoogle Scholar
Carr, R. M. & Fyfe, W. S. 1960. Synthesis fields of some aluminium silicates. Geochim. Cosmochim, Acta 21, 99–109.CrossRefGoogle Scholar
Evans, B. W. 1965. Application of a reaction-rate method to the breakdown equilibria of muscovite and muscovite plus quartz. Am. J. Sci. 263, 647–67.CrossRefGoogle Scholar
Hall, A. L. & Nel, L. T. 1926. On an occurrence of corundum-sillimanite rock in the norite of the Bushveld igneous complex. Trans. geol. Soc. S. Africa, 29, 1–16.Google Scholar
Hariya, Y., Dollase, W. A. & Kennedy, G. C. 1969. An experimental investigation of the relationship of mullite to sillimanite. Am. Miner. 54, 1419–41.Google Scholar
Holm, S. L. & Kleppa, O. J. 1966. The thermodynamic properties of the aluminium silicates. Am. Miner. 51, 1608–22.Google Scholar
Khitarov, N. I., Pugin, V. A., Bin, C. & Slutskii, A. B. 1963. Relations between andalusite, kyanite and sillimanite in the field of moderate temperatures and pressures. Geochemistry 1963, 235—44.Google Scholar
Kwak, T. A. P. 1971. Compositions of natural sillimanites from volcanic inclusions and metamorphic rocks. Am. Miner. 56, 1750–9.Google Scholar
Lindsley, D. H., Brown, G. M. & Muir, I. D. 1969. Conditions of the ferrowollastonite-ferrohedenbergite inversion in the Skaergaard Intrusion, East Greenland. Spec. Pap. Mineral. Soc. Am. 2, 193–201.Google Scholar
Moore, P. B. 1969. The crystal structure of sapphirine. Am. Miner. 54, 31–49.Google Scholar
Norrish, K. & Hutton, J. T. 1969. An accurate X-ray spectrographic method for analysis of a wide range of geological samples. Geochim. cosmochim. Acta 33, 431–53.CrossRefGoogle Scholar
Roy, R. & Osborn, E. F. 1954. The system Al2O3-SiO2-Hi2O. Am. Miner. 39, 853–85.Google Scholar
Schreyer, W. & Abraham, K. 1975. Peraluminous sapphirine as a metastable reaction product in kyanite-gedrite-talc schist from Sar e Sang, Afghanistan. Mineral. Mag. 40, 171–80.CrossRefGoogle Scholar
Segnit, R. E. & Kennedy, G. C. 1961. Reactions and melting relations in the system muscovite-quartz at high pressures. Am. J. Sci. 259, 280–7.CrossRefGoogle Scholar
Seifert, F. 1974. Stability of sapphirine: a study of the aluminous part of the system MgO-Al2O3-SiO2-H2O. J. Geol. 82, 173–204.CrossRefGoogle Scholar
Smith, D. G. W. 1965. The chemistry and mineralogy of some emery-like rocks from Sithean Sluaigh, Strachur, Argyllshire. Am. Miner. 50, 1982–2022.Google Scholar
Smith, D. G. W. 1969. Pyrometamorphism of phyllites by a dolerite plug. J. Petrol. 10, 20–55.CrossRefGoogle Scholar
Smith, D. G. W. & McConnell, J. D. C. 1966. A comparative electron diffraction study of sillimanite and some natural and artificial mullites. Mineralog. Mag. 35, 810–14.Google Scholar
Statham, P. J. 1976. A comparative study of techniques for quantitative analysis of the X-ray spectra obtained with a Si (Li) detector. X-ray Spectrom. 5, 16–28.CrossRefGoogle Scholar
Sweatman, T. R. & Long, J. V. P. 1969. Quantitative electron-probe microanalysis of rock-forming minerals. J. Petrol. 10, 332–79.CrossRefGoogle Scholar
Thomas, H. H. 1922. On certain xenolithic Tertiary minor intrusions in the Island of Mull (Argyllshire). Q. Jl geol. Soc. Lond. 78, 229–59.CrossRefGoogle Scholar
Weill, D. F. 1966. Stability relations in the Al2O3-SiO2 system calculated from solubilities in the Al2O3-SiO2-Na3AlF6 system. Geochim. cosmochim. Acta. 30, 223–37.CrossRefGoogle Scholar
White, J. C., Gray, J. J. & Town, J. W. 1968. Emery and emerylike rocks of the West-central Cascade Range, Oregon. Ore Bin, 30, 213–23.Google Scholar
Willemse, J. & Viljoen, E. A. 1970. The fate of argillaceous material in the gabbroic magma of the Bushveld complex. Spec. Publ. Geol. Soc. S. Africa 1, 336–66.Google Scholar
Winkler, H. G. F. 1957. Experimentelle Gesteinsmetamorphose. I. Hydrothermale Metamorphose Karbonatfreier Tone. Geochim. cosmochim. Acta 13, 42–69.CrossRefGoogle Scholar
Wyllie, P. J. 1961. Fusion of a Torridonian sandstone by a picrite sill on Soay (Hebrides). J. Petrol. 2, 1–37.CrossRefGoogle Scholar
Wyllie, P. J. & Tuttle, O. F. 1961. Hydrothermal melting of shales. Geol. Mag. 98, 56–66.CrossRefGoogle Scholar
Yoder, H. S. & Eugster, H. P. 1955. Synthetic and natural muscovites. Geochim. cosmochim. Acta 8, 225–80.CrossRefGoogle Scholar
Zeck, H. P. 1973. Compositions of natural sillimanites from volcanic inclusions and metamorphic rocks: a discussion. Am. Miner. 58, 555–7.Google Scholar