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GEOREF RECORD

Quetzalcoatlite; a new octahedral-tetrahedral structure from a 2X2X40 mu m (super 3) crystal at the Advanced Photon Source-GSE-CARS Facility

Peter C. Burns, Joseph J. Pluth, Joseph V. Smith, Peter Eng, Ian Steele and Robert M. Housley
Quetzalcoatlite; a new octahedral-tetrahedral structure from a 2X2X40 mu m (super 3) crystal at the Advanced Photon Source-GSE-CARS Facility
American Mineralogist (April 2000) 85 (3-4): 604-607

Abstract

The structure of quetzalcoatlite, Zn (sub 6) Cu (sub 3) (TeO (sub 3) ) (sub 2) O (sub 6) (OH) (sub 6) (AgxPby)Cl (sub x+2y) , x+y< or =2, Z = 1, was solved and refined using data collected at the Advanced Photon Source-GSE-CARS facility, using a 2X2X40 mu m (super 3) single crystal. The structure is trigonal, space group P31m, a = 10.145(1), c = 4.9925(9) Aa, V = 445.0(1) Aa (super 3) , and was refined to R = 5.1 for 395 unique observed reflections. Te (super 6+) O (sub 6) octahedra and Jahn-Teller distorted Cu (super 2+) O (sub 4) (OH) (sub 2) octahedra share edges to form layers parallel to (001), and ZnO (sub 2) (OH) (sub 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.


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 85
Serial Issue: 3-4
Title: Quetzalcoatlite; a new octahedral-tetrahedral structure from a 2X2X40 mu m (super 3) crystal at the Advanced Photon Source-GSE-CARS Facility
Affiliation: University of Notre Dame, Department of Civil Engineering and Geological Sciences, Notre Dame, IN, United States
Pages: 604-607
Published: 200004
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 13
Accession Number: 2000-034015
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
Secondary Affiliation: University of Chicago, USA, United StatesCalifornia Institute of Technology, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200011
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