Figure F70. Color close-up photograph of Sample 183-1139A-70R-1 (Piece 3, 45-55 cm). Moderately altered red-gray sanidine-phyric trachyandesite with brecciated and possibly welded textures (Unit 18). This sample is variably oxidized and may be the less-altered "protolith" of the completely altered ("bleached") rocks deeper in the core.