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Minerals 2018, 8(4), 158;

Tracing Mineral Reactions Using Confocal Raman Spectroscopy

Department of Earth Sciences, Universiteit Utrecht, 3584 CB Utrecht, The Netherlands
Steinmann Institute, Rheinische Friedrich-Wilhelms Universität Bonn, 53115 Bonn, Germany
Author to whom correspondence should be addressed.
Received: 7 March 2018 / Revised: 6 April 2018 / Accepted: 9 April 2018 / Published: 13 April 2018
(This article belongs to the Special Issue Mineral Surface Reactions at the Nanoscale)
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Raman spectroscopy is a powerful tool used to identify mineral phases, study aqueous solutions and gas inclusions as well as providing crystallinity, crystallographic orientation and chemistry of mineral phases. When united with isotopic tracers, the information gained from Raman spectroscopy can be expanded and includes kinetic information on isotope substitution and replacement mechanisms. This review will examine the research to date that utilizes Raman spectroscopy and isotopic tracers. Beginning with the Raman effect and its use in mineralogy, the review will show how the kinetics of isotope exchange between an oxyanion and isotopically enriched water can be determined in situ. Moreover, we show how isotope tracers can help to unravel the mechanisms of mineral replacement that occur at the nanoscale and how they lead to the formation of pseudomorphs. Finally, the use of isotopic tracers as an in situ clock for mineral replacement processes will be discussed as well as where this area of research can potentially be applied in the future. View Full-Text
Keywords: Raman spectroscopy; mineralogy; replacement reaction; isotopes Raman spectroscopy; mineralogy; replacement reaction; isotopes

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King, H.E.; Geisler, T. Tracing Mineral Reactions Using Confocal Raman Spectroscopy. Minerals 2018, 8, 158.

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