Abstract

Phlogopite-spinel-bronzite rocks, in which aggregates of bronzite and sapphirine appear to be pseudomorphs of aluminous anthophyllite, occur in a restricted low-granulite terrain in the Strangways range, central Australia. The form of the postulated reaction is gedrite + Delta H = enstatite + sapphirine + silica + escaping 'water'.

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