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A possible explanation of immiscibility in silicate melts

Published online by Cambridge University Press:  14 March 2018

E. Christiaan de Wys*
Affiliation:
International Business Machines Corporation, Kingston, New York, U.S.A

Summary

The problem of silicate immiscibility, of petrological and technological interest, is discussed in terms of the structures of silicate crystals and certain phase diagrams. Physical chemical principles are employed to indicate the author's basis for suspecting that certain structures in the crystalline solid are carried over into the melt and are a major contributory cause of silicate immiscibility. These structures appear to be limited to the neso (SiO4)4−, soro (Si2O7)6−, cyclo (Si3O9)6−, and ino (SiO3)2− types of silicate polymers and do not include the more complex phyllo- and tecto-silicate polymers.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1960

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