Near infrared spectroscopy of marble from Chillagoe, Australia and in comparison with other selected natural carbonates
López, Andrés & Frost, Ray L. (2015) Near infrared spectroscopy of marble from Chillagoe, Australia and in comparison with other selected natural carbonates. Journal of Near Infrared Spectroscopy, 23(1), pp. 41-48.
Marble from the Chillagoe deposits was extensively used in the construction of Australia’s parliament house. Near infrared (NIR) spectroscopy has been applied to study the quality of marble from the Chillagoe marble deposits and to distinguish between different types of marble in the Chillagoe deposits. A comparison of the NIR spectra of marble with dolomite and monohydrocalcite is made. The spectrum of the marble closely resembles that of monohydrocalcite and is different from that of dolomite. The infrared spectra of the minerals are characterised by OH and water stretching vibrations. Both the first and second fundamental overtones of these bands are observed in the NIR spectra. Marble is characterised by NIR bands at 4005, 4268 and 4340 cm–1, attributed to carbonate combination bands and overtones. Marble also shows NIR bands at 5005, 5106, 5234 and 5334 cm–1 assigned to water combination bands. Finally the NIR spectrum of the marble displays broad low-intensity features centred upon 6905 cm–1 attributed to the water first overtones. It appears feasible to identify marble through the use of NIR spectroscopy.
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|Item Type:||Journal Article|
|Keywords:||carbonate, marble, near infrared, spectroscopy, vibrational spectrsocopy, OH-overtones|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2015 IM Publications|
|Deposited On:||27 May 2015 02:06|
|Last Modified:||27 Mar 2016 18:25|
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