Ferric iron measurements of coexisting garnet and clinopyroxene in grospydite xenoliths from Zagadochnaya kimberlite pipe (Yakutia, Siberian craton) - Marras, Giulia; Mikhailenko, Denis; McCammon, Catherine; Logvinova, Alla; Hanzel, Darko; Stagno, Vincenzo (International Kimberlite Conference: Extended Abstracts, 2024)