QUETZALCOATLITE: A NEW OCTAHEDRAL-TETRAHEDRAL STRUCTURE FROM A 2 X 2 X 40 μM3 CRYSTAL AT THE ADVANCED PHOTON SOURCE-GSE-CARS FACILITY
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dc.contributor.author | Burns P.C. | |
dc.contributor.author | Pluth J.J. | |
dc.contributor.author | Smith J.V. | |
dc.contributor.author | Steele I. | |
dc.contributor.author | Eng P. | |
dc.contributor.author | Housley R.M. | |
dc.date.accessioned | 2021-01-29T07:14:09Z | |
dc.date.available | 2021-01-29T07:14:09Z | |
dc.date.issued | 2000 | |
dc.identifier | https://elibrary.ru/item.asp?id=13834643 | |
dc.identifier.citation | American Mineralogist, 2000, 85, 3, 604-607 | |
dc.identifier.issn | 0003-004X | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/24032 | |
dc.description.abstract | The structure of quetzalcoatlite, Zn6Cu3(TeO3)2O6(OH)6(AgxPby)Clx+2y, x + y ≤ 2, Z = 1, was solved and refined using data collected at the Advanced Photon Source-GSE-CARS facility, using a 2 × 2 ×40 μm3 single crystal. The structure is trigonal, space group P3̅1m, a = 10.145(1), c = 4.9925(9) Å, V = 445.0(1) Å3, and was refined to R = 5.1 for 395 unique observed reflections. Te6+O6 octahedra and Jahn-Teller distorted Cu2+O4(OH)2 octahedra share edges to form layers parallel to (001), and ZnO2(OH)2 tetrahedra share vertices to form six-member rings parallel to (001). Layers of octahedra and tetrahedra alternate along c, and form a new framework structure by vertex sharing. Channels through the framework parallel to c are occupied by Ag, Pb, and Cl ions. Electron microprobe analysis revealed Ag and Cl overlooked in the original microchemical analysis. Up to one-third of the Ag was substituted by Pb, and a Pb-rich analog may exist. | |
dc.title | QUETZALCOATLITE: A NEW OCTAHEDRAL-TETRAHEDRAL STRUCTURE FROM A 2 X 2 X 40 μM3 CRYSTAL AT THE ADVANCED PHOTON SOURCE-GSE-CARS FACILITY | |
dc.type | Статья |
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