Figure F44. Vein of pale-green smectite in Sample 176-735B-133R-7 (Piece 1, 126-137 cm). Olivine, plagioclase, and clinopyroxene are highly altered to smectite in the alteration halo. Altered plagioclase appears pale green, olivine dark, and altered clinopyroxene brown or has brilliant reflectance at greater distance from the vein (incipient alteration).