Bench Crater Apollo 12 landing site, Oceanus Procellarum, Moon Stone. Carbonaceous chondrite, anomalous (C?) A fragment found in soil sample 12037 brought to the earth=20 from the moon by the Apollo 12 mission has a matrix=20 similar to that of CI chondrites, H.Y.McSween,Jr., Earth=20 Planet. Sci. Lett., 1976, 31, p.193. -jeff