Infrared spectra of the Orgueil /C-1/ chondrite and serpentine minerals

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Infrared Spectroscopy, Meteoritic Composition, Mineralogy, Orgueil Meteorite, Serpentine, Absorption Spectra, Abundance, Aluminum, Polymorphism, Silicates, Infrared, Spectrum, Orgueil Chondrite, Chondrites, Serpentine, Forsterite, Phyllosilicate, Mineralogy, Silicates, Absorption, Polymorphism, Abundance, Carbonaceous Chondrites, Meteorites, C1 Chondrites

Scientific paper

Infrared spectroscopy of the Orgueil C-1 chondrite and polymorphs of serpentine was performed in order to further define the mineralogy of Orgueil. Spectra of the meteorite and a synthetic serpentine (Mg3(Si2O5)(OH)4) were obtained in the regions from 1400 to 200 and from 4000 to 2500 kayers using a double beam infrared spectrometer. The spectra of Orgueil are found to be incompatible with those of the chrysotile, antigorite and lizardite polymorphs of serpentine, indicating a very low abundance of these minerals in the meteorite. It is suggested that chamosite or minerals related to chamosites may prove to be compatible with the compositional, structural and infrared properties of Orgueil.

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