What is it about?
This study seeks to explain some of the variability in the Raman spectra of pyrite as reported in the literature. Through a series of laser Raman microprobe experiments, we confirm and explore two major effects, one temperature related, the other related to crystal orientation.
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Why is it important?
The is the first attempt to investigate these effects on the Raman spectrum of pyrite, and yet Raman is already extensively used as a mineral identification tool. This work should help users to employ Raman as a consistently effective tool for identifying pyrite and inferring the crystallographic identity of the face being analyzed.
Perspectives
This work is important in the field of stable isotope geochemistry as it outlines a method by which individual grains of pyrite can be identified. This, coupled with the crystal orientation effect identified, provides the basis for using Raman as a prelude to grain-specific geochemical analyses (e.g., SIMS).
Mr Roger Nicholas Bryant
Washington University in Saint Louis
Read the Original
This page is a summary of: Variability in the Raman Spectrum of Unpolished Growth and Fracture Surfaces of Pyrite Due to Laser Heating and Crystal Orientation, Applied Spectroscopy, November 2017, SAGE Publications,
DOI: 10.1177/0003702817736516.
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