00521naa#a2200157#i#450# EN\\bibl\100300 20251207030858.7 2712-7761 20250624b2025####ek#y0engy0150####ca RU Outstanding geologist, mineralogist and gemologist Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2025 1 с. Journal article local Kotova Olga Borisovna komisc.editorum.ru