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2014Characterization of the sulphate mineral coquimbite, a secondary iron sulphate from Javier Ortega mine, Lucanas Province, Peru – Using infrared, Raman spectroscopy and thermogravimetry.Frost, Ray L.; Gobac, Željka Žigovečki; López, Andrés; Xi, Yunfei; Cipriano, Ricardo Augusto Scholz; Lana, Cristiano de Carvalho; Lima, Rosa Malena Fernandes
2013Characterization of the sulphate mineral amarantite - using infrared, Raman spectroscopy and thermogravimetry.Frost, Ray L.; López, Andrés; Cipriano, Ricardo Augusto Scholz; Xi, Yunfei; Silveira, Aléssio Jordan da; Lima, Rosa Malena Fernandes
2013Infrared and Raman spectroscopic characterisation of the sulphate mineral creedite - Ca3Al2SO4(F,OH) 2H2O - and in comparison with the alums.Frost, Ray L.; Xi, Yunfei; Cipriano, Ricardo Augusto Scholz; López, Andrés; Granja, Amanda
2013Vibrational spectroscopic characterization of the sulphate mineral leightonite K2Ca2Cu(SO4)4 2H2O : implications for the molecular structure.Frost, Ray L.; López, Andrés; Xi, Yunfei; Cipriano, Ricardo Augusto Scholz; Graça, Leonardo Martins; Lagoeiro, Leonardo Evangelista
2014Vibrational spectroscopic study of the sulphate mineral glaucocerinite (Zn,Cu)10Al6(SO4)3(OH)32-18H2O - a natural layered double hydroxide.Frost, Ray L.; Theiss, Frederick L.; López, Andrés; Cipriano, Ricardo Augusto Scholz
2013Vibrational spectroscopic characterization of the sulphate mineral khademite Al(SO4)F-5(H2O).Frost, Ray L.; Cipriano, Ricardo Augusto Scholz; López, Andrés; Xi, Yunfei