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Some data on synthetic aluminous and other pyroxenes

Published online by Cambridge University Press:  14 March 2018

E. R. Segnit
E. R. Segnit*
Affiliation:
Department of Mineralogy and Petrology, University of Cambridge
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Extract

Although detailed experimental investigations have been carried out on the lime, magnesia, and ferrous pyroxenes, relatively little attention has been devoted to synthetic studies of the group involving replacements by ions of higher valencies. In the present study, determinations have been carried out on the limits of solid solution of alumina in pyroxenes in the system CaSiO3-MgSiO3-A12O3. Determinations of the solubility of ferric oxide and titania in diopside were also made.

Pure calcium carbonate, magnesia, silica (crushed and washed rockcrystal), alumina, ferric oxide, and titania were used for the preparation of the mixtures. The constituents in their requisite proportions were fused together four or five times with intervening crushing of the quenched glass. The product was an homogeneous glass free from crystalline material.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 30 , Issue 223 , December 1953 , pp. 218 - 226
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1953

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