About: On the presence of hydrous defects in differently coloured wulfenites (PbMoO4): an infrared and optical spectroscopic study     Goto   Sponge   NotDistinct   Permalink

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  • Several samples of wulfenite, PbMoO4, varying in colour from colourlerss to yellow, orange and red, have been analyzed by means of IR and optical absorption spectroscopy and by microprobe analyses. A distinct pleochroic band group with absorption maxima centred at 3,380 and 3,150 cm-1 can be seen in the IR spectra of wulfenite single-crystals, indicating the presence of hydroxyl groups. The pleochroic and thermal behaviour of the OH stretching bands along with deuteration experiments, as well as results obtained from synthetic fluxgrown samples, exclude the presence of submicroscopic hydrous mineral inclusions as their primary origin. The pleochroic scheme and band positions were used to postulate a model for the OH incorporation mode, based on the assumption of vacancies on Mo and Pb sites in the structure of this ‘nominally anhydrous’ mineral.
  • Several samples of wulfenite, PbMoO4, varying in colour from colourlerss to yellow, orange and red, have been analyzed by means of IR and optical absorption spectroscopy and by microprobe analyses. A distinct pleochroic band group with absorption maxima centred at 3,380 and 3,150 cm-1 can be seen in the IR spectra of wulfenite single-crystals, indicating the presence of hydroxyl groups. The pleochroic and thermal behaviour of the OH stretching bands along with deuteration experiments, as well as results obtained from synthetic fluxgrown samples, exclude the presence of submicroscopic hydrous mineral inclusions as their primary origin. The pleochroic scheme and band positions were used to postulate a model for the OH incorporation mode, based on the assumption of vacancies on Mo and Pb sites in the structure of this ‘nominally anhydrous’ mineral. (en)
Title
  • On the presence of hydrous defects in differently coloured wulfenites (PbMoO4): an infrared and optical spectroscopic study
  • On the presence of hydrous defects in differently coloured wulfenites (PbMoO4): an infrared and optical spectroscopic study (en)
skos:prefLabel
  • On the presence of hydrous defects in differently coloured wulfenites (PbMoO4): an infrared and optical spectroscopic study
  • On the presence of hydrous defects in differently coloured wulfenites (PbMoO4): an infrared and optical spectroscopic study (en)
skos:notation
  • RIV/00216224:14310/13:00066884!RIV14-GA0-14310___
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  • P(GAP207/11/0555)
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  • 10
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  • 93938
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  • RIV/00216224:14310/13:00066884
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  • wulfenite; OH defects (en)
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  • DE - Spolková republika Německo
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  • [659F4B8056E0]
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  • Physics and Chemistry of Minerals
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  • 40
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  • Losos, Zdeněk
  • Škoda, Radek
  • Beran, Anton
  • Talla, Dominik
  • Wildner, Manfred
http://linked.open...ain/vavai/riv/wos
  • 000326056500001
issn
  • 0342-1791
number of pages
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  • 10.1007/s00269-013-0610-8
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  • 14310
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