Figure F35. Photomicrographs showing the titanomagnetite overgrowths on Cr spinel crystals from Unit 6 with ilmenite oxidation lamellae and maghemite development along fractures and cleavage planes (reflected light). A. Sample 197-1206A-18R-1 (Piece 4, 49-51 cm) (field of view = 0.25 mm; photomicrograph 1206A-331). B. Sample 197-1206A-18R-1 (Piece 4, 80-83 cm) (field of view = 0.625 mm; photomicrograph 1206A-378).

Figure F35. Photomicrographs showing the titanomagnetite overgrowths on Cr spinel crystals from Unit 6 with ilmenite oxidation lamellae and maghemite development along fractures and cleavage planes (reflected light). A. Sample 197-1206A-18R-1 (Piece 4, 49-51 cm) (field of view = 0.25 mm; photomicrograph 1206A-331). B. Sample 197-1206A-18R-1 (Piece 4, 80-83 cm) (field of view = 0.625 mm; photomicrograph 1206A-378).