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Felsic layers and porphyroblasts in schist or banding of similar material in gneisses (Coarse grained, color banded metamorphic fabric Produced by melting and recrystallization. Common color banding : light-quartz, feldspar rich- layers

and dark -amphibole, biotite- layers) may be eye shaped on account of differential extension. Because of a shear component, the augens may give indication about the sense of shear as they do in this case a left handed one (Photo P Diwan, Ghisauli gneisses, C India).