A sapphirine-cordierite-bronzite-phlogopite paragenesis from Namaqualand, South Africa

1 December 1975

journal article
Published by Mineralogical Society in Mineralogical Magazine

Vol. 40 (312) , 347-356
https://doi.org/10.1180/minmag.1975.040.312.03

Abstract

The rock composition and electron microprobe analyses of the five constituent minerals are presented for a sapphirine-cordierite-bronzite-phlogopite-spinel rock from Namaqualand, South Africa. These data are considered inrelation to experimental data and the mineralogy of certain associated rock types, and it is suggested that the sapphirine-bearing rock represents a metamorphic residuum (restite) after extraction of anatectic granitic liquid from an original argillaceous sediment.

Keywords

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