Skip to Main Content
Skip Nav Destination
GEOREF RECORD

The role of silver on the stabilization of the incommensurately modulated structure in calaverite, AuTe (sub 2)

Luca Bindi, Alla Arakcheeva and Gervais Chapuis
The role of silver on the stabilization of the incommensurately modulated structure in calaverite, AuTe (sub 2)
American Mineralogist (May 2009) 94 (5-6): 728-736

Abstract

Structural investigations of several minerals belonging to the calaverite group with composition Au (sub 1-x) Ag (sub x) Te (sub 2) (x=0.00, 0.02, 0.05, 0.09, 0.19, and 0.33) indicate that Ag is randomly distributed on the Au sites. This suppresses the valence fluctuation of Au and, therefore, the structure modulations. The results are compared with the previously published incommensurately modulated structure of calaverite, Au (sub 0.9) Ag (sub 0.1) Te (sub 2) , which is characterized by valence fluctuations of Au reinforced by an ordered distribution of Ag. The (3+1)-dimensional calaverite structure type is able to reproduce both (3+1)D and 3D related structures with the general formula AB (sub 2) (A=Au, Ag, Cu, Nb, Ta; B=Te).


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 94
Serial Issue: 5-6
Title: The role of silver on the stabilization of the incommensurately modulated structure in calaverite, AuTe (sub 2)
Affiliation: Universita di Firenze, Museo di Storia Naturale, Florence, Italy
Pages: 728-736
Published: 200905
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 40
Accession Number: 2009-054238
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 11 tables
Secondary Affiliation: Ecole Polytechnique Federale de Lausanne, CHE, Switzerland
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200930
Close Modal

or Create an Account

Close Modal
Close Modal