We are working on a suite of calc-silicate granulites at the contact of an
anorthosite body. We have got mesoperthite like intergrowth between garndite
garnet (Grs65-75 Adr25-35) and clinopyroxene (Al2O3~ 4-6 wt%). The other
minerals are wollastonite,scapolite with or without quartz. The Cpx grains
devoid of garnet exsolution are highly aluminous (up to 11 wt% Al2O3).
Please enlighten me about the natural occurrences where such an intergrowth
between grandite and Cpx has been observed.