Figure F65. Partly coherent, flow-banded jigsaw-fit breccia, dissected by a network of quartz-sphalerite-pyrite veins with late anhydrite fill in vein centers. Vugs (10 mm in diameter) are rimmed by quartz-sphalerite-pyrite and have anhydrite cores (Unit 23; interval 193-1189B-14R-1, 107-118 cm).