Frost, Ray LeslieXi, YunfeiCipriano, Ricardo Augusto ScholzBelotti, Fernanda MariaLagoeiro, Leonardo Evangelista2017-07-142017-07-142012FROST, R. L. et al. Chemistry, Raman and infrared spectroscopic characterization of the phosphate mineral reddingite: (MnFe)3(PO4)2(H2O,OH)3, a mineral found in lithium-bearing pegmatite. Physics and Chemistry of Minerals, v. 39, p. 803-810, 2012. Disponível em: <https://link.springer.com/article/10.1007%2Fs00269-012-0535-7>. Acesso em: 20 de jun. 2017.1432-2021http://www.repositorio.ufop.br/handle/123456789/8249Detailed investigation of an intermediate member of the reddingite–phosphoferrite series, using infrared and Raman spectroscopy, scanning electron microcopy and electron microprobe analysis, has been carried out on a homogeneous sample from a lithium-bearing pegmatite named Cigana mine, near Conselheiro Pena, Minas Gerais, Brazil. The determined formula is ðMn1:60Fe1:21Ca0:01 Mg0:01ÞP2:83ðPO4Þ2:12 ðH2O2:85F0:01ÞP2:86, indicating predominance in the reddingite member. Raman spectroscopy coupled with infrared spectroscopy supports the concept of phosphate, hydrogen phosphate and dihydrogen phosphate units in the structure of reddingite-phosphoferrite. Infrared and Raman bands attributed to water and hydroxyl stretching modes are identified. Vibrational spectroscopy adds useful information to the molecular structure of reddingite– phosphoferrite.en-USrestritoRamanInfraredMolecular structureReddingite – phosphoferriteArtigo publicado em periodicohttps://link.springer.com/article/10.1007%2Fs00269-012-0535-7https://doi.org/10.1007/s00269-012-0535-7