(Perloz, Valle del Lys, Valle d'Aosta, Italia)
Ref.: Ch. Robert et al. , Bull. Minéral. , 1985, 108, pp. 699-711.
Sesia-Lanzo zone.
Biotite-garnet-sillimanite kingizites and amphibolites retromorphosed into eclogites, eclogitic schists, glaucophane schists and gneisses.
Surimposition of a greenschist retromorphic facies.