Synthesis and infrared spectroscopy of amphiboles along the tremolite-pargasite join. - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles European Journal of Mineralogy Year : 2003

Synthesis and infrared spectroscopy of amphiboles along the tremolite-pargasite join.

Abstract

Amphiboles along the tremolite-pargasite join have been hydrothermally synthesized at 900°C, 3 kbar. Run products were characterized by optical and electron microscopy, powder X-ray diffraction and infrared spectroscopy. Under the experimental conditions used, there is complete solid-solution between tremolite and pargasite and the variation of cell parameters is linear as a function of composition. The infrared spectra in the principal OH-stretching region are consistent with the predictions of Hawthorne (1997) on local bond-valence grounds, and show strong short-range order of cations at the octahedral sites and strong coupling between Al at T(1) and Na at A.

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Mineralogy
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Dates and versions

hal-00069365 , version 1 (17-05-2006)

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Giancarlo Della Ventura, Franck C. Hawthorne, Jean-Louis Robert, Gianluca Iezzi. Synthesis and infrared spectroscopy of amphiboles along the tremolite-pargasite join.. European Journal of Mineralogy, 2003, 15, pp.341-347. ⟨10.1127/0935-1221/2003/0015-0341⟩. ⟨hal-00069365⟩
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