Microphotographs of mafic-ultramafic rocks. (a) Destabilization of pyroxene into amphibole + quartz + opaque. (b) Overgrown sphene grains around opaque minerals. (c) Leucite in metahornblendite. (d) Microcline blasts in metagabbro. (e) Granonematoblastic texture of metagabbro showing concordant fabric to the mylonitic foliation in the adjacent shear band. (f) Outcrop photographs showing contact between metagabbro, amphibolite and metahornblendite. (g) Porphyroblastic green hornblende in biotite amphibolite. (h) Poikiloblastic garnet showing inclusion of plagioclase-quartz-biotite in garnet amphibolite.