Search

Spectroscopic techniques serve an important tool in the characteization of minerals. Garnet samples taken from the rocks of Vattapara, Kovalam, Mukkunnimala have been used. Spectral analysis of purified and dried garnet is carried out using FT-IR, FT-Raman, X-ray diffraction, X-ray Fluorescence techniques. Different d spacing values obtained from the XRD pattern fairly matches standard d spacing values of almandine. It is inferred from the XRF that the sample contains large concentration of Tungsten [WO3-22%] besides Silicon [SiO2-7-9%], Iron [Fe2O3-55%] etc.. IR spectra in the region 2800–3600 cm-1 indicates absorption pattern attributable to OH structurally bound within the Garnet. The spectral bands corresponding to the various elements present in the garnet sample such as Si, Al, Fe, Mg etc. have been identified from their Raman and IR spectra. The vibrational spectral analysis further confirms that the garnet under investigation has crystallographically non equivalent SiO2 tetrahedral. [ABSTRACT FROM AUTHOR]