Structural and chemical study of weishanite, (Au,Ag,Hg), from the Keystone mine, Colorado, USA
| العنوان: | Structural and chemical study of weishanite, (Au,Ag,Hg), from the Keystone mine, Colorado, USA |
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| المؤلفون: | Luca Bindi, Giovanni Orazio Lepore, Frank N. Keutsch |
| المصدر: | Mineralogical magazine (Online) 82 (2018): 1141–1145. doi:10.1180/mgm.2018.113 info:cnr-pdr/source/autori:Bindi L.; Keutsch F.N.; Lepore G.O./titolo:Structural and chemical study of weishanite, (Au,Ag,Hg), from the Keystone mine, Colorado, USA/doi:10.1180%2Fmgm.2018.113/rivista:Mineralogical magazine (Online)/anno:2018/pagina_da:1141/pagina_a:1145/intervallo_pagine:1141–1145/volume:82 |
| بيانات النشر: | Mineralogical Society, London , Regno Unito, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | crystal structure, Materials science, mercury, gold-silver alloys, Alloy, nomenclature rules, Analytical chemistry, chemistry.chemical_element, Zinc, Electron microprobe, Crystal structure, engineering.material, gold, amalgam, 010502 geochemistry & geophysics, 010403 inorganic & nuclear chemistry, 01 natural sciences, 0104 chemical sciences, Critical discussion, weishanite, chemistry, Geochemistry and Petrology, engineering, silver, 0105 earth and related environmental sciences |
| الوصف: | Structural data for weishanite, an alloy of Au, Ag and Hg, were collected for the first time from a crystal from the Keystone Mine, Colorado, USA. The structure was solved in the space group P63/mmc with the unit cell a = 2.9348(8) and c = 4.8215(18) Å] and refined to R = 0.0299 for 40 observed reflections [4σ(F) level] and four parameters and to R = 0.0356 for all 47 independent reflections. The weishanite structure can be considered a derivative of the zinc structure, with Au, Ag and Hg disordered in the same structural position. On this basis, we suggest that the formula is normalized to 1 atom with Z = 2, leading, for the sample investigated, to Au0.41Ag0.31Hg0.28 (electron microprobe data). Accordingly, weishanite can be considered the Au-rich isotype of schachnerite. A comparison with other Au/Ag-Hg alloys is presented together with a critical discussion about the nomenclature rules to be applied to alloys and simple metals. |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcb53c8e4614ef856434762175d4f4f0 http://www.scopus.com/inward/record.url?eid=2-s2.0-85060961053&partnerID=q2rCbXpz |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....bcb53c8e4614ef856434762175d4f4f0 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |