Collect. Czech. Chem. Commun. 1981, 46, 3043-3048

Laser Raman polarization spectra of natural zeolite-natrolite

František Pechara, Ivan Gregorab and Drahoš Rykla

a Institute of Geology and Geotechnics, Czechoslovak Academy of Sciences, 182 09 Prague 8
b Physical Institute, Czechoslovak Academy of Sciences, 160 00 Prague 6


Raman polarization spectra of single crystal of natrolite Na2Al2Si3O10.2 H2O have been measured in the region 4 000 to 50 cm-1 at room temperature. The spectra have been measured in the conventional rectangular geometry. The found maxima of the polarization spectra of single crystal of the mineral investigated can be divided into four groups according to pertinence to individual vibrations: (i) translation and rotation vibrations of water molecules in interaction with the crystal lattice, (ii) internal vibrations of the bonds Al-O, Si-O inside the tetrahedrons, (iii) internal vibrations of bonds of the water molecules, (iv) external vibrations between the (Al,Si)O4 tetrahedrons.