Kyanite-bearing eclogite xenoliths from the Udachnaya kimberlite, Siberian craton, RussiaIoana-Bogdana Radu, Bertrand Moine, Dmitri Ionov, Andrey Korsakov, Alexander Golovin, Denis Mikhailenko and Jean-Yves CottinBull. Soc. géol. Fr., 188 1-2 (2017) 7DOI: https://doi.org/10.1051/bsgf/2017008