Figure F72. Narrow anastomosing quartz veins (medium gray) in altered rock. Pyrite (white) occurs both within the veins and the wallrock (Sample 193-1189A-3R-1 [Piece 10, 59-63 cm] in reflected light; width of view = 2.75 mm. Photomicrograph ID# 1189A

Figure F72. Narrow anastomosing quartz veins (medium gray) in altered rock. Pyrite (white) occurs both within the veins and the wallrock (Sample 193-1189A-3R-1 [Piece 10, 59-63 cm] in reflected light; width of view = 2.75 mm. Photomicrograph ID# 1189A_27; thin section 31).