Synthetic shibkovite K(K1.67H2O0.33)(Ca1.3Na0.7)[Zn3Si12O30]: the crystal structure and comparative crystal chemistry

被引：0
作者：
G. V. Kiriukhina
O. V. Yakubovich
O. V. Dimitrova
机构：
[1] Moscow State University,Faculty of Geology
[2] Russian Academy of Sciences,Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry
来源：
Crystallography Reports | 2015年 / 60卷
关键词：
Crystallography Report; Zinc Silicate; Vertex Polyhedron; Tetrahedral Framework; Crystal Chemical Feature;
D O I：
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摘要：
The structure of a single crystal of a synthetic analog of mineral shibkovite K(K1.67H2O0.33)(Ca1.3Na0.7)[Zn3Si12O30] (milarite structure type) obtained by hydrothermal synthesis in the AlPO4-K3PO4-CaCO3-Na2CO3-ZnCO3-SiO2-H2O system has been solved (R = 0.0406) by X-ray diffraction analysis: a = 10.5327(2) Å, c = 14.2019(3) Å, sp. gr. P6/mcc, Z = 2, and ρcalcd = 2.90 g/cm3. The crystal-chemical features of the new phase are studied in comparison with the other terms of the milarite group. It is shown that the crystallization conditions for minerals and synthetic analogs of this group determine the presence or absence of crystallization water in the structures of compounds.
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页码：37 / 45
页数：8
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