Eclogite Paregenesis of Diamonds from Udachnaya and Mir Pipes, Yakutia - Sobolev, N.V.; Zuev, V.M.; Bezborodov, S.M.; Ponomarenko, A.I.; Spetsius, Z.V.; Kuligin, S.; Yefimova, E.S.; Afanasiev, V.P.; Koptil, V.I.; Botkunov, A.I. (International Kimberlite Conference: Extended Abstracts, 1991)