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Title: Crystal structure of ilyukhinite, a new mineral of the eudialyte group

Abstract

The crystal structure of ilyukhinite, a new mineral of the eudialyte group, is studied by X-ray diffraction. The mineral found in pegmatite bodies of the Kukisvumchorr Mountain (Khibiny alkaline complex) is characterized by low sodium content, high degree of hydration, and predominance of manganese over iron. The trigonal cell has the following parameters: a = 14.1695(6) and c = 31.026(1) Å; space group R3m. The structure is refined to final R = 0.046 in the anisotropic approximation of atomic displacements using 1527F > 3σF. The idealized formula of ilyukhinite (Z = 3) is written as (H{sub 3}O,Na){sub 14}Ca{sub 6}Mn{sub 2}Zr{sub 3}Si{sub 26}O{sub 72}(OH){sub 2} · 3H{sub 2}O. The new mineral differs from other representatives of the eudialyte group by the predominance of both oxonium in the N positions of extra-framework cations and manganese in the Ðœ2 position centering the tetragonal pyramid.

Authors:
;  [1];  [2];  [1]
  1. Russian Academy of Sciences, Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Scientific Research Center (Russian Federation)
  2. Russian Academy of Sciences, Institute of Problems of Chemical Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22645263
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 62; Journal Issue: 1; Other Information: Copyright (c) 2017 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; ATOMIC DISPLACEMENTS; CATIONS; CRYSTAL STRUCTURE; IRON; MANGANESE; PEGMATITES; SILICATE MINERALS; SODIUM; SPACE GROUPS; TRIGONAL LATTICES; X-RAY DIFFRACTION

Citation Formats

Rastsvetaeva, R. K., E-mail: rast@crys.ras.ru, Rozenberg, K. A., Chukanov, N. V., and Aksenov, S. M. Crystal structure of ilyukhinite, a new mineral of the eudialyte group. United States: N. p., 2017. Web. doi:10.1134/S1063774517010199.
Rastsvetaeva, R. K., E-mail: rast@crys.ras.ru, Rozenberg, K. A., Chukanov, N. V., & Aksenov, S. M. Crystal structure of ilyukhinite, a new mineral of the eudialyte group. United States. doi:10.1134/S1063774517010199.
Rastsvetaeva, R. K., E-mail: rast@crys.ras.ru, Rozenberg, K. A., Chukanov, N. V., and Aksenov, S. M. Sun . "Crystal structure of ilyukhinite, a new mineral of the eudialyte group". United States. doi:10.1134/S1063774517010199.
@article{osti_22645263,
title = {Crystal structure of ilyukhinite, a new mineral of the eudialyte group},
author = {Rastsvetaeva, R. K., E-mail: rast@crys.ras.ru and Rozenberg, K. A. and Chukanov, N. V. and Aksenov, S. M.},
abstractNote = {The crystal structure of ilyukhinite, a new mineral of the eudialyte group, is studied by X-ray diffraction. The mineral found in pegmatite bodies of the Kukisvumchorr Mountain (Khibiny alkaline complex) is characterized by low sodium content, high degree of hydration, and predominance of manganese over iron. The trigonal cell has the following parameters: a = 14.1695(6) and c = 31.026(1) Å; space group R3m. The structure is refined to final R = 0.046 in the anisotropic approximation of atomic displacements using 1527F > 3σF. The idealized formula of ilyukhinite (Z = 3) is written as (H{sub 3}O,Na){sub 14}Ca{sub 6}Mn{sub 2}Zr{sub 3}Si{sub 26}O{sub 72}(OH){sub 2} · 3H{sub 2}O. The new mineral differs from other representatives of the eudialyte group by the predominance of both oxonium in the N positions of extra-framework cations and manganese in the Ðœ2 position centering the tetragonal pyramid.},
doi = {10.1134/S1063774517010199},
journal = {Crystallography Reports},
number = 1,
volume = 62,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2017},
month = {Sun Jan 15 00:00:00 EST 2017}
}