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Galuskin, E.V.; Lazic, B; Armbruster, T; Galuskina, I.O.; Persev, N.N.; Gazeev, V.M.; Włodyka, R.; Duslski, M.; Dzierżanowski, P.; Zadov, A.E.; Dubrovinsky, L.S. (2012). Edgrewite Ca-9(SiO4)(4)F-2-hydroxyledgrewite Ca-9(SiO4)(4)(OH)(2), a new series of calcium humite-group minerals from altered xenoliths in the ignimbrite of Upper Chegem caldera, Northern Caucasus, Kabardino-Balkaria, Russia. American mineralogist, 97(11-12), pp. 1998-2006. Washington, D.C.: Mineralogical Society of America 10.2138/am.2012.4161
