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Russia | |
| Sorokina, E. S., Rassomakhin, M. A., Nikandrov, S. N., Karampelas, S., Kononkova, N. N., Nikolaev, A. G., ... & Kotlyarov, V. A. (2019). Origin of Blue Sapphire in Newly Discovered Spinel–Chlorite–Muscovite Rocks within Meta-Ultramafites of Ilmen Mountains, South Urals of Russia: Evidence from Mineralogy, Geochemistry, Rb-Sr and Sm-Nd Isotopic Data. Minerals, 9(1), 36. |
| Kissin, Aleksander, Gottman, Irina, Sustavov, Sergei, Murzin, Valery, Kiseleva, Daria (2020) The First Find of Cr2O3 Eskolaite Associated with Marble-Hosted Ruby in the Southern Urals and the Problem of Al and Cr Sources. Minerals, 10 (2) 101 doi:10.3390/min10020101 |