Vibrational spectroscopic characterization of the magnesium borate-phosphate mineral lueneburgite

Lueneburgite, a rare magnesium borate-phosphate mineral from Mejillones, Chile, has been characterized using Raman and mid-infrared spectroscopy methods. Boron tetrahedra are characterized by sharp Raman band at 877 cm super(-1), attributed to the nu sub(1)[BO sub(4)] super(5-) symmetric stretching...

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Published inSpectroscopy letters Vol. 49; no. 9; pp. 606 - 612
Main Authors Korybska-Sadlo, Iwona, Sitarz, Maciej, Krol, Magdalena, Gunia, Piotr
Format Journal Article
LanguageEnglish
Published 20.10.2016
Subjects
Bending
Boron
Infrared
Magnesium
Minerals
Spectroscopy
Stretching
Vibration
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Summary:Lueneburgite, a rare magnesium borate-phosphate mineral from Mejillones, Chile, has been characterized using Raman and mid-infrared spectroscopy methods. Boron tetrahedra are characterized by sharp Raman band at 877 cm super(-1), attributed to the nu sub(1)[BO sub(4)] super(5-) symmetric stretching mode. The phosphate anion is associated with a distinct band at 1032 cm super(-1), attributed to the nu sub(3)[PO sub(4)] super(3-) antisymmetric stretching mode. The most intensive Raman band at 734 cm super(-1) is ascribed to stretching vibrations of bridging oxygen atoms in boron-oxygen-phosphor bridges. Bonds associated with water bending mode and stretching vibration are observed at 1661 cm super(-1) (infrared) and in the 3000-3500 cm super(-1) region (Raman and infrared spectrum).
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ISSN:0038-7010
1532-2289
DOI:10.1080/00387010.2016.1236819