Figs. 13–15. Olivine (50 grains) in banded picotite-dunite, 7496, Glen South of Alt a'Chaoich. Skye. Section perpendicular to trend of bands (broken line). Contours, 12, 8, 4, 2%. Figs. 16–18. Olivine (50 grains) in fissile dunite, 7498, Glen south of Alt a'Chaoich. Skye. Section parallel to plane of fissility. Contours, 12, 8, 4, 2%.