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Title
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Mineralogical and Mossbauerspectroscopic study of some strunzite varieties of the Silbergrube, Waidhaus, Oberpfalz, Germany
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Author
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Abstract
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| Two varieties, of ''strunzite'' are investigated namely ferrostrunzite and mangano-ferristrunzite from Waidhaus, Oberpfalz, Germany. The chemical relationships between the different varieties of ''strunzite'' are briefly discussed. Chemical composition, thermal behavior, X-ray data and IR spectra are presented. Transmission Fe-57 Mossbauer spectra for the mangano-ferristrunzite at 4.2 K (magnetically ordered state) and at room temperature (paramagnetic state) are presented. From the latter one, it is concluded that no detectable Fe2+ is present. The spectra were excellently fitted with three distinct, Lorentzian-shaped components in accordance with the compositional and structural features of the mineral. The Mn/Fe ratio is confirmed by the evaluated relative areas of the subspectra. The various hyperfine parameters are given and briefly discussed. |
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Language
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English
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Source (journal)
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Neues Jahrbuch für Mineralogie: Monatshefte. - Stuttgart
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Publication
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Stuttgart
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1995
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ISSN
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0028-3649
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Volume/pages
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1
(1995)
, p. 11-25
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ISI
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A1995QJ83200002
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