Yum'echorr (Yumjechorr) Mt., Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

References:
- Mikhailova, Y.A., Konopleva, N.G., Yakovenchuk, V.N., Ivanyuk, G.Y., Men’shikov, Y.P., and Pakhomovsky, Y.A. (2007): Corundum-Group Minerals in Rocks of the Khibiny Alkaline Pluton, Kola Peninsula. Geology of Ore Deposits 49(7), 590-598.
- Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Amphiboles of the Khibiny Alkaline Pluton, Kola Peninsula, Russia. Geology of Ore Deposits 50(8), 720-731.