title: [Spectroscopic characteristics study of morganite from Mozambique].
abstract: In recent years, morganite is becoming more and more popular due to its special color. The morganite samples located in the Republic of Mozambique were detailedly analyzed for its basic properties, chemical composition characteristics and spectroscopy properties by laser ablation plasma mass spectrometry (LA-ICP-MS), ultraviolet-visible absorption spectra (UV-Vis-NIR), infrared spectrum (IR) and Raman spectroscopy. The color parameters of morganite samples including the main wave- length, saturation, and lightness were got by UV-Vis-NIR Chemical composition test showed higher content of Li, Rb, Cs and Mn in samples and chemical formula was calculated as Be3.2090 Al2.0757 Li0.425 Si5.664 O18 (Na0.1420 Cs0.1316). Infrared spectroscopy showed that morganite structure vibration area is mainly in the fingerprint area 400-1200 and 900-1200 cm(-1) for the vibration of the ring Si--O--Si, 550-900 cm(-1) for Be-O vibration area, and 450-530 cm(-1) for Al--O vibration area. Because the Cs element content is higher in sample morganite and Cs belongs to higher atomic number elements, its existence may move the vibrationfrequency of Si--O--Si rings to the low position. Raman spectra showed 1065 cm(-1) for Si-O inner vibration of non bridge oxygen, around 1000 cm(-1) for Be--O outer vibration of non bridge oxygen, 685 cm(-1) for Si--O--Si inner vibration of deformation, 400 cm(-1) for O--Be--O outer vibration of bending, 390 cm(-1) for. Al--O outer vibration of deformation, 320 cm(-1) for Al--O outer vibration of bending.
authors.forename: Zuo-wei
authors.initials: ZW
authors.lastname: Yin
authors.forename: Xiao-lu
authors.initials: XL
authors.lastname: Li
authors.forename: De-qing
authors.initials: DQ
authors.lastname: Bao
authors.forename: Quan-li
authors.initials: QL
authors.lastname: Chen
authors.forename: Miao
authors.initials: M
authors.lastname: Zhang