Photomicrographs of quartzofeldspathic gneisses with biotites and garnets. (A) Almond-shaped K-feldspar surrounded by fine-grained aggregates of biotites and recrystallized quartz ribbons. (B) Almond-shaped K-feldspar later deformed into a domino-type. (C) Domino-type feldspar later partially ground at its tails. (D) Almond-shaped K-feldspar later deformed into a domino-type and finally completely disrupted in a cataclastic manner at its tails. The feldspar is surrounded by fine-grained quartz ribbons. (E) K-feldspar crosscut by conjugate Coulomb-type fractures dipping at 60 degrees. (F) Fractured garnet crosscut by conjugate Coulomb-type fractures dipping at 60 degrees.