Figure F17. Photomicrographs of clinopyroxene (Sample 209-1274A-4R-1, 52-54 cm) (cross-polarized light). A. Euhedral clinopyroxene associated with spinel within orthopyroxene along a contact with olivine (field of view = 0.7 mm; image 1274A_032). B. Close-up showing igneous twinning in the clinopyroxene (field of view = 0.35 mm; image 1274A

Figure F17. Photomicrographs of clinopyroxene (Sample 209-1274A-4R-1, 52-54 cm) (cross-polarized light). A. Euhedral clinopyroxene associated with spinel within orthopyroxene along a contact with olivine (field of view = 0.7 mm; image 1274A_032). B. Close-up showing igneous twinning in the clinopyroxene (field of view = 0.35 mm; image 1274A_030).