Synthetic shibkovite K(K{sub 1.67}H{sub 2}O{sub 0.33})(Ca{sub 1.3}Na{sub 0.7})[Zn{sub 3}Si{sub 12}O{sub 30}]: the crystal structure and comparative crystal chemistry

Journal Article · Thu Jan 15 00:00:00 EST 2015 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774515010101· OSTI ID:22472498

Yakubovich, O. V.; Dimitrova, O. V. ^[1]

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1. Moscow State University, Faculty of Geology (Russian Federation)

The structure of a single crystal of a synthetic analog of mineral shibkovite K(K{sub 1.67}H{sub 2}O{sub 0.33})(Ca{sub 1.3}Na{sub 0.7})[Zn{sub 3}Si{sub 12}O{sub 30}] (milarite structure type) obtained by hydrothermal synthesis in the AlPO{sub 4}-K{sub 3}PO{sub 4}-CaCO{sub 3}-Na{sub 2}CO{sub 3}-ZnCO{sub 3}-SiO{sub 2}-H{sub 2}O 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 ρ{sub calcd} = 2.90 g/cm{sup 3}. 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.

• OSTI ID: 22472498
• Journal Information: Crystallography Reports, Vol. 60, Issue 1; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM PHOSPHATES
CALCIUM CARBONATES
COMPARATIVE EVALUATIONS
CRYSTAL STRUCTURE
CRYSTALLIZATION
HYDRATES
HYDROTHERMAL SYNTHESIS
MONOCRYSTALS
POTASSIUM PHOSPHATES
SODIUM CARBONATES
WATER
X-RAY DIFFRACTION
ZINC CARBONATES
ZINC SILICATES