La microspectrometrie Raman des grenats X3Y2Z3O12: II. La serie alumineuse naturelle pyrope-almandine-spessartite

M. Pinet; D. C. Smith

La microspectrometrie Raman des grenats X₃Y₂Z₃O₁₂: II. La serie alumineuse naturelle pyrope-almandine-spessartite

Translated title of the contribution: Raman microspectrometry of garnets X₃Y₂Z₃O₁₂: II. The natural aluminian series pyrope-almandine-spessartine

M. Pinet, D. C. Smith

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Following article I (Pinet & Smith), 1993) which presented data on natural calcic garnets, the Raman spectra of 52 natural aluminian garnets along the series pyrope-almandine and almandine-spessartine are compared with each other and with grossular which is simultaneously aluminian and calcic. For most of the 12 principal bands and numerous weak bands or shoulders identified amongst the 25 bands theoretically predicted, the wavenumber positions reveal quasi-linear trends by following step by step the variation in chemical composition. Only ten of the interpolations between the end-members proposed by Hofmeister and Chopelas (1991) are correct, the others are definitely incorrect or leave uncertainties. There are thus several problems in establishing the correspondence of Raman spectra between different compositions. -from English summary

Translated title of the contribution	Raman microspectrometry of garnets X₃Y₂Z₃O₁₂: II. The natural aluminian series pyrope-almandine-spessartine
Original language	French
Pages (from-to)	161-179
Number of pages	19
Journal	Schweizerische Mineralogische und Petrographische Mitteilungen
Volume	74
Issue number	2
State	Published - 1994
Externally published	Yes

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abstract = "Following article I (Pinet & Smith), 1993) which presented data on natural calcic garnets, the Raman spectra of 52 natural aluminian garnets along the series pyrope-almandine and almandine-spessartine are compared with each other and with grossular which is simultaneously aluminian and calcic. For most of the 12 principal bands and numerous weak bands or shoulders identified amongst the 25 bands theoretically predicted, the wavenumber positions reveal quasi-linear trends by following step by step the variation in chemical composition. Only ten of the interpolations between the end-members proposed by Hofmeister and Chopelas (1991) are correct, the others are definitely incorrect or leave uncertainties. There are thus several problems in establishing the correspondence of Raman spectra between different compositions. -from English summary",

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AU - Smith, D. C.

PY - 1994

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N2 - Following article I (Pinet & Smith), 1993) which presented data on natural calcic garnets, the Raman spectra of 52 natural aluminian garnets along the series pyrope-almandine and almandine-spessartine are compared with each other and with grossular which is simultaneously aluminian and calcic. For most of the 12 principal bands and numerous weak bands or shoulders identified amongst the 25 bands theoretically predicted, the wavenumber positions reveal quasi-linear trends by following step by step the variation in chemical composition. Only ten of the interpolations between the end-members proposed by Hofmeister and Chopelas (1991) are correct, the others are definitely incorrect or leave uncertainties. There are thus several problems in establishing the correspondence of Raman spectra between different compositions. -from English summary

AB - Following article I (Pinet & Smith), 1993) which presented data on natural calcic garnets, the Raman spectra of 52 natural aluminian garnets along the series pyrope-almandine and almandine-spessartine are compared with each other and with grossular which is simultaneously aluminian and calcic. For most of the 12 principal bands and numerous weak bands or shoulders identified amongst the 25 bands theoretically predicted, the wavenumber positions reveal quasi-linear trends by following step by step the variation in chemical composition. Only ten of the interpolations between the end-members proposed by Hofmeister and Chopelas (1991) are correct, the others are definitely incorrect or leave uncertainties. There are thus several problems in establishing the correspondence of Raman spectra between different compositions. -from English summary

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La microspectrometrie Raman des grenats X₃Y₂Z₃O₁₂: II. La serie alumineuse naturelle pyrope-almandine-spessartite

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