Figure F88. Hematite flakes (ruby red to opaque) in quartz (Sample 193-1188F-37Z-2 [Piece 3, 31-33 cm] in plane-polarized light; width of view = 0.14 mm. Photomicrograph ID# 1188F

Figure F88. Hematite flakes (ruby red to opaque) in quartz (Sample 193-1188F-37Z-2 [Piece 3, 31-33 cm] in plane-polarized light; width of view = 0.14 mm. Photomicrograph ID# 1188F_75; thin section 101).