68.1 Metadunite. Day Book Mine, western North Carolina. Large, deformed porphyroclasts of olivine with flat parting surfaces are surrounded by a matrix of fine-grained, recrystallized olivine with scattered grains of chromium spinel (note the tiny chromite grain in the center with the perfectly triangular face of an octahedron), talc (white to silvery-white), and tremolite (e.g., upper center, white to light green). Note the modest fabric produced by an upper left to lower right grain orientation.