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Synthetic ‘deweylite’

Published online by Cambridge University Press:  05 July 2018

K. Speakman  and
A. J. Majumdar
K. Speakman
Affiliation:
Building Research Station, Garston, Watford
A. J. Majumdar
Affiliation:
Building Research Station, Garston, Watford
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Summary

Materials similar to the natural hydrated magnesium silicate mineral deweylite have been synthesized hydrothermally under low-temperature-low-pressure conditions from magnesia-silica gels. Optical, X-ray, infra-red, and DTA examinations have shown that both the natural and synthetic materials are mixtures of badly crystallized talc and badly crystallized serpentine. The mineral is thought to be a coarse mixture of these two components while the synthetic products are intimately interlayered. These materials are believed to be closely related to the hydrated magnesium silicates detected in high-magnesia cement hydration products.

Type
Research Article
Information
Mineralogical Magazine , Volume 38 , Issue 294 , June 1971 , pp. 225 - 234
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2013

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