Figure F71. Color close-up photograph of Sample 183-1139A-70R-2 (Piece 1, 122-135 cm). Completely altered white to very pale green to light pink sanidine-phyric trachyandesite. Most intense alteration (white and pink) occurs as halos along veins filled with quartz, siderite, and calcite. Sanidine, siderite, and quartz were the only phases identified by XRD analysis of the white wall rock. Rock is locally brecciated between veins.