Raman and infrared spectroscopic characterization of beryllonite, a sodium and beryllium phosphate mineral - implications for mineral collectors.

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dc.contributor.authorFrost, Ray Leslie
dc.contributor.authorXi, Yunfei
dc.contributor.authorCipriano, Ricardo Augusto Scholz
dc.contributor.authorBelotti, Fernanda Maria
dc.contributor.authorMenezes Filho, Luiz Alberto Dias
dc.date.accessioned2014-12-11T17:05:53Z
dc.date.available2014-12-11T17:05:53Z
dc.date.issued2012
dc.description.abstractThe mineral beryllonite has been characterized by the combination of Raman spectroscopy and infrared spectroscopy. SEM–EDX was used for the chemical analysis of the mineral. The intense sharp Raman band at 1011 cm_1, was assigned to the phosphate symmetric stretching mode. Raman bands at 1046, 1053, 1068 and the low intensity bands at 1147, 1160 and 1175 cm_1 are attributed to the phosphate antisymmetric stretching vibrations. The number of bands in the antisymmetric stretching region supports the concept of symmetry reduction of the phosphate anion in the beryllonite structure. This concept is supported by the number of bands found in the out-of-plane bending region. Multiple bands are also found in the in-plane bending region with Raman bands at 399, 418, 431 and 466 cm_1. Strong Raman bands at 304 and 354 cm_1 are attributed to metal oxygen vibrations. Vibrational spectroscopy served to determine the molecular structure of the mineral. The pegmatitic phosphate minerals such as beryllonite are more readily studied by Raman spectroscopy than infrared spectroscopy.pt_BR
dc.identifier.citationFROST, R. L. et al. Raman and infrared spectroscopic characterization of beryllonite, a sodium and beryllium phosphate mineral - implications for mineral collectors. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 97, p. 1058-1062, 2012. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142512006889>. Acesso em: 07 out. 2014.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.saa.2012.07.067
dc.identifier.issn1386-1425
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/4145
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3487240781563.pt_BR
dc.subjectSpectroscopypt_BR
dc.subjectBeryllonitept_BR
dc.subjectPegmatitept_BR
dc.subjectPhosphatept_BR
dc.titleRaman and infrared spectroscopic characterization of beryllonite, a sodium and beryllium phosphate mineral - implications for mineral collectors.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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