Figure F29. Photomicrographs showing incomplete serpentinization of olivine in a dunite. Relict fresh olivine with a mesh texture defined by serpentinization along internal cracks is bordering a domain of complete serpentinization (Sample 209-1271B-10R-1, 40–43 cm). A. Cross-polarized light: blue filter; field of view = 5.5 mm; image 1271B_027. B. Plane-polarized light: blue + dark gray filters; field of view = 5.5 mm; image 1271B

Figure F29. Photomicrographs showing incomplete serpentinization of olivine in a dunite. Relict fresh olivine with a mesh texture defined by serpentinization along internal cracks is bordering a domain of complete serpentinization (Sample 209-1271B-10R-1, 40–43 cm). A. Cross-polarized light: blue filter; field of view = 5.5 mm; image 1271B_027. B. Plane-polarized light: blue + dark gray filters; field of view = 5.5 mm; image 1271B_028.