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Correlations between the infrared spectrum and the composition of garnets in the pyrope-almandine-spessartine series

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Abstract

The i.r. spectrum of 13 analyzed garnets of the pyralspite group has been investigated in the 1400-200 cm−1 region, and correlations have been found between the spectrum and the chemical composition. The results include: typical features in the spectrum of the end-members pyrope, almandine and spessartine; relationships between the spectrum and the pyrope percentage in pyrope-almandine solid solutions; and the influence of the CaO (grossularite) amount on the shape of the low-frequency absorption bands. These data allow a semiquantitative determination of the pyrope percentage in pyrope-almandine solid solutions.

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References

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Authors and Affiliations

  1. Département de Chimie Générale, Université de Liège, Sart Tilman, Liège, Belgium

    P. Tarte & M. Deliens

  2. Département de Géologie et Minéralogie, Musée Royal de l'Afrique Centrale, Tervuren, Belgium

    P. Tarte & M. Deliens

Authors
  1. P. Tarte
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  2. M. Deliens
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Tarte, P., Deliens, M. Correlations between the infrared spectrum and the composition of garnets in the pyrope-almandine-spessartine series. Contr. Mineral. and Petrol. 40, 25–37 (1973). https://doi.org/10.1007/BF00371761

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  • DOI: https://doi.org/10.1007/BF00371761

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