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GEOREF RECORD

Crystal structure refinement of miargyrite, AgSbS (sub 2)

Joseph V. Smith, Joseph J. Pluth and Shao-xu Han
Crystal structure refinement of miargyrite, AgSbS (sub 2)
Mineralogical Magazine (October 1997) 61 (5(408)): 671-675

Abstract

Miargyrite is the low-temperature monoclinic derivative of a high-temperature cubic galena/halite structure. The essential features of its crystal structure (Knowles, 1959) were confirmed, but the details of the bonding changed [new space group C121; a 12.824(1), b 4.4060(3), c 13.193(1) Aa, beta 98.567(6) degrees ]. The octahedral connectivity of galena/halite is severely distorted: Ag(1), 2S each at 2.53, 2.66 & 3.39 Aa; Ag(2), 2 each at 2.54, 2.62 and 3.44; Ag(3), 2.38, 2.40, 3.05, 3.05, 3.53, 3.58; Sb(1), 2.45, 2.50, 2.51, 3.22, 3.28, 3.41; Sb(2), 2.45, 2.50, 2.51, 3.22, 3.28, 3.41. The short distances define the following coordinations: very distorted tetrahedral Ag(1) and (2); near-linear Ag(3) at 178.9(2) degrees ; trigonal-pyramidal Sb(1) and (2) at 92.0, 93.6 and 96.8 degrees . The ten shortest S-S distances range from 3.61 to 3.77 Aa.


ISSN: 0026-461X
Coden: MNLMBB
Serial Title: Mineralogical Magazine
Serial Volume: 61
Serial Issue: 5(408)
Title: Crystal structure refinement of miargyrite, AgSbS (sub 2)
Affiliation: University of Chicago, Department of Geophysical Sciences, Chicago, IL, United States
Pages: 671-675
Published: 199710
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
References: 6
Accession Number: 2000-041837
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200014
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