Structural characterization of the borate mineral inyoite – CaB3O3(OH)5⋅4(H2O)

Frost, Ray L., López, Andrés, Scholz, Ricardo, Theiss, Frederick, & Costa, Geraldo Magela da (2015) Structural characterization of the borate mineral inyoite – CaB3O3(OH)5⋅4(H2O). Journal of Molecular Structure, 1080, pp. 99-104.

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Abstract

We have studied the mineral Ca(H4B3O7)(OH)⋅4(H2O) or CaB3O3(OH)5⋅4(H2O) using electron microscopy and vibrational spectroscopy. The mineral has been characterized by a range of techniques including X-ray diffraction, thermal analysis, electron microscopy with EDX and vibrational spectroscopy. Electron microscopy shows a pure phase and the chemical analysis shows the presence of calcium only. The nominal resolution of the Raman spectrometer is of the order of 2 cm−1 and as such is sufficient enough to identify separate bands for the stretching bands of the two boron isotopes. Raman and infrared bands are assigned to the stretching and bending modes of trigonal and tetrahedral boron and the stretching modes of the hydroxyl and water units. By using a combination of techniques we have characterized the borate mineral inyoite.

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ID Code: 83712
Item Type: Journal Article
Refereed: Yes
Keywords: Inyoite, Borate, Calcium, Raman spectroscopy, Infrared spectroscopy
DOI: 10.1016/j.molstruc.2014.09.079
ISSN: 0022-2860
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 Elsevier
Copyright Statement: This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Deposited On: 21 Apr 2015 23:54
Last Modified: 03 Apr 2016 22:01

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