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May 6, 2026American Mineralogist

High-resolution Raman spectroscopy of calcium phosphate apatite along the F-OH, F-Cl, and Cl-OH binaries

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Authors

KAKyle T. AshleyMSMatthew Steele-MacInnisDHDaniel Harlov

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Overview

High-resolution spectroscopy reveals non-linear mixing in calcium phosphate apatite, impacting crystallography.

Key Points

  • This research aims to evaluate the variations in the ν1 symmetric stretching mode of calcium phosphate apatite along binary mixtures.
  • Used high-resolution Raman spectroscopy on synthetic calcium phosphate apatite.
  • Analyzed samples along F-OH, F-Cl, and Cl-OH joins.
  • Fitted peak positions and widths of the ν1 mode.
  • ν1 peak along F-OH join fitted well with a single peak function.
  • Significant splitting of ν1 band observed in F-Cl and Cl-OH joins.
  • Intermediate mixtures show Raman peak positions outside the range of endmembers.

Cite This Study

Ashley et al. (2026) studied this question.

synapsesocial.com/papers/69fa980604f884e66b531c64https://doi.org/10.2138/am-2025-9938
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