Refined crystal structure of kuzmenkoite |
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| Authors: | R. K. Rastsvetaeva N. V. Chukanov I. V. Pekov |
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| Affiliation: | (1) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia;(2) Institute of Chemical Physics in Chernogolovka, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia;(3) Faculty of Geology, Moscow State University, Vorob’evygory, Moscow, 119899, Russia |
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| Abstract: | The structure of the mineral kuzmenkoite found in the Lovozero massif (the Kola Peninsula) was reinvestigated by the X-ray diffraction analysis. This mineral belongs to the labuntsovite family and differs from other members of this family by the absence of Na atoms, a high Mn content, and the new type of filling frame-work channels because of the replacement of Na atoms by H2O molecules and H3O groups. It was found that the disorder of atoms in the channels leads to lowering of the symmetry to Cm. |
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