Short communication: near- and mid-infrared spectroscopy of the lithium-bearing amphibole holmquistite from Barraute, Canada
Kloprogge, J. Theo, Duong, Loc V., Martens, Wayde N., Frost, Ray L., & Visser, Diederik (2006) Short communication: near- and mid-infrared spectroscopy of the lithium-bearing amphibole holmquistite from Barraute, Canada. Journal of Near Infrared Spectroscopy, 14(3), pp. 209-212.
The mid- and near-infrared spectra of holmquistite, a lithium-containing orthorhombic amphibole, from Barraute (Quebec, Canada) has been measured The OH-stretching region is characterised by bands around 3660, 3645, 3629 and 3613 cm-1 assigned to (3Mg)-OH, (2Mg + Fe2+)-OH, (Mg + 2Fe2+)-OH and (3Fe2+)-OH, respectively. Based on the ratio between the 3645 and 3660 cm-1 bands Fe2+/(Fe2+ + Mg2+) ratios in the M1 and M3 sites were determined to be in the range between 0.35 and 0.45. In the near-infrared region two times four bands were observed associated with the four possible combination modes of the four M-OH stretching and bending modes around 4029, 4193, 4323 and 4400 cm-1 and with the four overtones of M-OH stretching modes around 7055, 7091, 7123 and 7155 cm-1.
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|Item Type:||Journal Article|
|Additional Information:||Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the journal's website (see link) or contact the author. Author contact details: firstname.lastname@example.org|
|Keywords:||amphibole, holmquistite, mid, infrared spectroscopy, near, infrared spectroscopy|
|Subjects:||Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Mineralogy and Crystallography (040306)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2006 NIR Publications|
|Deposited On:||08 Nov 2006 00:00|
|Last Modified:||20 Apr 2015 01:32|
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