Figure F28. Photomicrographs showing ilmenite oxidation lamellae in titanomagnetite (reflected light; field of view = 0.25 mm). A. The triangular crystal contains discontinuous ilmenite oxidation lamellae, whereas the hexagonal form has maghemite developed along cleavage planes in Unit 1 (Sample 197-1206A-3R-2 [Piece 8, 94-96 cm]) (photomicrograph 1206A-290). B. Unit 10 (Sample 197-1206A-24R-3 [Piece 2, 10-12 cm]) (photomicrograph 1206-336).

Figure F28. Photomicrographs showing ilmenite oxidation lamellae in titanomagnetite (reflected light; field of view = 0.25 mm). A. The triangular crystal contains discontinuous ilmenite oxidation lamellae, whereas the hexagonal form has maghemite developed along cleavage planes in Unit 1 (Sample 197-1206A-3R-2 [Piece 8, 94-96 cm]) (photomicrograph 1206A-290). B. Unit 10 (Sample 197-1206A-24R-3 [Piece 2, 10-12 cm]) (photomicrograph 1206-336).