Figure F17. Photomicrograph showing altered anhedral orthopyroxenes with gently curved grain boundaries in an altered olivine matrix. A small black grain in the upper middle of the image is spinel (Sample 209-1270C-1R-1, 36–39 cm) (cross-polarized light: blue filter; field of view = 5.5 mm; image 1270C

Figure F17. Photomicrograph showing altered anhedral orthopyroxenes with gently curved grain boundaries in an altered olivine matrix. A small black grain in the upper middle of the image is spinel (Sample 209-1270C-1R-1, 36–39 cm) (cross-polarized light: blue filter; field of view = 5.5 mm; image 1270C_001).