The structure and electron density of Fe2+-bearing tavorite in relation to the genetic crystal chemistry of secondary phosphates of lithium pegmatitesстатья
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Аннотация:Ferrous iron cations were bound to be localized in an independent octahedral position based on the precise X-ray diffraction study, including analysis of the deformational electron density of the black synthetic tavorite. Amodel explaining color of the crystals has been suggested. The position of the hydrogen atoms in tavorite's structure has been determined for the first time. The structural relationship established in the tavorite– Fe 2+ -bearing tavorite–barbosalite series is a crystal chemistry's reason for “tavorite–barbosalite” paragenesis in lithium ...