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Edgrewite from
Xenolith no. 1, Lakargi Mt., Upper Chegem volcanic caldera (Verkhnechegemskaya caldera), Baksan Valley, Kabardino-Balkaria, Russia

Validity:Valid - Type Locality
References:Galuskin, E.V., Armbruster, T., Pertsev, N.N., Galuskina, I.O., Lazic, B., Gazeev, V.M., Włodyka, R., Dulski, M., Dzierzanowski, P., Zadov, A.E. and Dubrovinsky, L. (2011) Edgrewite, IMA 2011-058. CNMNC Newsletter No. 11, December 2011, page 2888; Galuskin, E.V., Lazic, B., Armbruster, T., Galuskina, I.O., Pertsev, N.N., Gazeev, V.M., Włodyka, R, Dulski, M., Dzierżanowski, P., Zadov, A.E., Dubrovinsky, L.S. (2012): Edgrewite Ca9(SiO4)4F2 – hydroxyledgrewite Ca9(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, 1998-2006.
Mineral Data:Click here to view Edgrewite data
Locality Data:Click here to view Xenolith no. 1, Lakargi Mt., Upper Chegem volcanic caldera (Verkhnechegemskaya caldera), Baksan Valley, Kabardino-Balkaria, Russia
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