Incorporating Far-Infrared Data into Carbonate Mineral Analyses

Poduska, Kristin M. and Campbell, Stephen (2020) Incorporating Far-Infrared Data into Carbonate Mineral Analyses. Minerals, 10 (7). p. 628. ISSN 2075-163X

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Polycrystalline carbonate minerals (including calcite, Mg-calcite, and aragonite) can show distinctive variations in their far-infrared (FIR) spectra. We describe how to identify mixed-phase samples by correlating FIR spectral changes with mid-infrared spectra, X-ray diffraction data, and simple peak overlap simulations. Furthermore, we show how to distinguish portlandite-containing (Ca(OH)2) mixtures that are common in heated calcium carbonate samples. Ultimately, these results could be used for tracking how minerals are formed and how they change during environmental exposure or processing after extraction.

Item Type: Article
Item ID: 14573
Keywords: calcite, aragonite, infrared spectroscopy, X-ray diffraction
Department(s): Science, Faculty of > Physics and Physical Oceanography
Date: 16 July 2020
Date Type: Publication
Digital Object Identifier (DOI):
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