00778naa#a2200205#i#450# EN\\bibl\89477 20250414103144.1 2712-7761 20241008b2024####ek#y0engy0150####ca RU Dissymmetrization in eudialyte-group minerals. IV. Features of the blocky isomorphism in the structure of the Nb-deficient oneillite analogue in the frame of P3-symmetry Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2024 5 с. Journal article local Силикаты. 548.736.6 . Rastsvetaeva R. K. Chukanov N. V. Gridchina V. M. Aksenov S. M. komisc.editorum.ru