Figure F118. Vein of chlorite and titanite (green in upper left; stage 1), euhedral pyrite and euhedral quartz (stage 2), and late anhydrite (dark gray, with cleavage, filling interstices between quartz crystals (Thin Section 133; Sample 309-1256D-149R-1, 76–78 cm) (field of view = 5 mm; plane-polarized light).
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