Structure of lengenbachite; a high-resolution transmission electron microscope study

Structure of lengenbachite; a high-resolution transmission electron microscope study

High-resolution transmission electron microscopy and electron diffraction have been used to examine the structure of lengenbachite, of approximate composition Pb6As4(Ag,Cu)2S13. The structure deduced consists of semicommensurate intergrowth of a pseudotetragonal layer, a sheared four-atom-thick 100...

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Veröffentlicht in:The American mineralogist 1988-12, Vol.73 (11-12), p.1426-1433
Hauptverfasser: Williams, Timothy B, Pring, Allan
Format: Artikel
Sprache:eng
Schlagworte:
Alps
Binnental
Central Europe
crystal structure
Earth sciences
Earth, ocean, space
Europe
Exact sciences and technology
lengenbachite
mineral data
Mineralogy
minerals
natural materials
nonsilicates
sulfarsenites
sulfosalts
Swiss Alps
Switzerland
TEM data
Valais Switzerland
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Beschreibung
Zusammenfassung:High-resolution transmission electron microscopy and electron diffraction have been used to examine the structure of lengenbachite, of approximate composition Pb6As4(Ag,Cu)2S13. The structure deduced consists of semicommensurate intergrowth of a pseudotetragonal layer, a sheared four-atom-thick 100 PbS-like slice, and a slightly distorted five-atom-thick pseudo-orthohexagonal 111 M2S3 slice.
ISSN:0003-004X
1945-3027