Determinación y cálculo de las constantes ópticas en un cristal opaco uniáxico: zinkenita

A. LÓPEZ, J.M. BOSCH

Abstract


Reflectivity data for zinkenite in air and oil on (0001) and (1010) sections were obtained using microphotometric methods under normal incidente. Measurements were made in mo- nochromatic ligth of wavelengths from 4401 to 660' nm. The sefractive indices, the coefficients of absorption indices in the two principal directions of vibration of the crystal were <calculated. Dispersion curves of al1 optical constants are given. The sample were identified by X-ray diffraction and its chemical composition stablished by X-ray fluorescence analysis.

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