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Raman spectroscopic study of the antimonate mineral bahianite Al5Sb35+O14(OH)2

Frost, Ray L. & Bahfenne, Silmarilly (2010) Raman spectroscopic study of the antimonate mineral bahianite Al5Sb35+O14(OH)2. Journal of Raman Spectroscopy, 41(2), pp. 207-211.

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Abstract

Raman spectroscopy has been used to characterise the antimonate mineral bahianite Al5Sb35+O14(OH)2 , a semi-precious gem stone. The mineral is characterised by an intense Raman band at 818 cm-1 assigned to Sb3O1413- stretching vibrations. Other lower intensity bands at 843 and 856 cm-1 are also assigned to this vibration and this concept suggests the non-equivalence of SbO units in the structure. Low intensity Raman bands at 669 and 682 cm-1 are probably assignable to the OSbO antisymmetric stretching vibrations. Raman bands at 1756, 1808 and 1929 cm-1 may be assigned to δ SbOH deformation modes, whilst Raman bands at 3462 and 3495 cm-1 are assigned to AlOH stretching vibrations. Complexity in the low wave number region is attributed to the composition of the mineral.

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ID Code: 30984
Item Type: Journal Article
Additional Information: This paper is the result of the work of student Silmarilly Bahfenne
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Keywords: antimonate, bahianite, brandholzite, Raman Spectroscopy, valentinite
DOI: 10.1002/jrs.2348
ISSN: 0377-0486
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
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 2010 John Wiley & Sons
Deposited On: 18 Feb 2010 07:28
Last Modified: 01 Mar 2012 00:15

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