Te-rich canfieldite, AG8SN(S,TE)6, from the Legenbach Quarry, Binntal, Canton Valais, Switzerland: Occurrence, description and crystal structure. (Articolo in rivista)

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Label
  • Te-rich canfieldite, AG8SN(S,TE)6, from the Legenbach Quarry, Binntal, Canton Valais, Switzerland: Occurrence, description and crystal structure. (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bindi L. [1, 2]; Nestola F.[3]; Guastoni A. [4]; Zorzi F. [3]; Peruzzo L. [5], Raber T. (2012)
    Te-rich canfieldite, AG8SN(S,TE)6, from the Legenbach Quarry, Binntal, Canton Valais, Switzerland: Occurrence, description and crystal structure.
    in Canadian mineralogist (Online); Mineralogical Association of Canada, Ottawa (Canada)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bindi L. [1, 2]; Nestola F.[3]; Guastoni A. [4]; Zorzi F. [3]; Peruzzo L. [5], Raber T. (literal)
Pagina inizio
  • 111 (literal)
Pagina fine
  • 118 (literal)
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  • http://www.mineralogicalassociation.ca/template/EJournal/ (literal)
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  • 50 (literal)
Rivista
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  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • [1] Museo di Storia Naturale, Sezione Mineralogia e Litologia, Università degli Studi di Firenze, Firenze, Italy [2] Istituto di Geoscienze e Georisorse, Sezione di Firenze, Firenze, Italy [3] Dipartimento di Geoscienze, Università degli Studi di Padova, Padova, Italy [4] Museo di Mineralogia, Università degli Studi di Padova, Padova, Italy [5] Istituto di Geoscienze e Georisorse, Sezione di Padova, Padova, Italy (literal)
Titolo
  • Te-rich canfieldite, AG8SN(S,TE)6, from the Legenbach Quarry, Binntal, Canton Valais, Switzerland: Occurrence, description and crystal structure. (literal)
Abstract
  • In order to evaluate the effects of Te-for-S substitution in the minerals of the argyrodite group, the crystal structure and chemical composition of a crystal of Te-rich canfieldite from the Lengenbach quarry, Binntal, Switzerland, was investigated. The unit-cell parameters are a 11.0003(6) angstrom and V 1331.1(1) angstrom(3). The structure was solved and refined in the space group F (4) over bar 3m to R-1 = 0.0308 for 194 independent reflections and 21 parameters. Quantitative analysis led to the chemical formula Ag-8.05(Sn1.03Ge0.01)(Sigma 1.04)(S3.95Te1.95Se0.01)(Sigma 5.91), ideally Ag8Sn(S,Te)(6). The crystal structure of Te-rich canfieldite was found to be topologically identical to that of putzite, (Cu4.7Ag3.3)GeS6. Neglecting the short Ag-Ag contacts (due to disorder), the two Ag atoms in the structure can be considered as three-fold (Ag1) and four-fold (Ag2) coordinated. Tin adopts a regular tetrahedral coordination. The refinement of the site-occupancy factor indicates Te to be disordered over the three anion positions (i.e., X1, X2, and X3), with a preference for the X1 site. (literal)
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