gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1979.043.326.16 Coexisting Pyroxenes from Spinel Pyroxenites from the Eastern Ghats of Andhra Pradesh, India Rao A. T. Raman C. V. Appa Rao G. Department of Geology, Andhra University, Waltair 530 003, India 6 1979 43 326 311 311 Copyright © 1979, The Mineralogical Society 1979 Synopsis

Analyses are given of four pairs of coexisting pyroxenes; their Kp ranges from 1.282 to 1.369, suggesting equilibration temperatures as high as 1200 °C and pressures of the order of 8 to 9 kb.