Abstract
The well-known “modular” concept of the structure of two complex sulfides has been supplemented by crystallographic analysis fixing specific features of ordering atomic sites in crystal structures. Regular ordering of cations (formation of F sublattices with close parameters) and independent, less regular ordering of anions is established. It is shown that local ordering of atoms in contacting modular layers gives rise to a unified sublattice for the structures and forms a long-range order.
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Original Russian Text © S.V. Borisov, S.A. Magarill, N.V. Pervukhina, 2015, published in Kristallografiya, 2015, Vol. 60, No. 6, pp. 863–869.
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Borisov, S.V., Magarill, S.A. & Pervukhina, N.V. Crystallographic analysis of modular structures of cupromakopavonite Cu8Ag3Pb4Bi19S38 and heyrovskyite Pb6Bi2S9 minerals. Crystallogr. Rep. 60, 791–796 (2015). https://doi.org/10.1134/S1063774515060048
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DOI: https://doi.org/10.1134/S1063774515060048