Figure F29. Color close-up photograph of Sample 183-1136A-15R-2 (Piece 1B, 33-41 cm) showing a moderately dipping multiple generation clay + calcite vein. Blue-green celadonite displaces spalled-off slivers of wall rock that are partially to completely altered to celadonite and/or Mg-saponite. The earlier portions of the veins are highly disrupted and recemented with calcite. A ~1-cm-wide diffuse oxidation halo is developed along the margins of the vein.