PLEOCHROISM PROPERTIES OF THE COMETARY MINERALS

Abstract

The present article deals with the phenomenon of luminescence of the mineral halos of the comets. It is shown that luminescence will be provided as a precondition for a stable and long-term coloration of mineral halos of the comets. It is proposed also that the pleochroism of the biaxial minerals of cometary halo will provide rapid changes or alternations of the colors of this halo. A mechanism of a rapid coloration of the cometary halo is proposed. Possible minerals responsible for such a rapid coloration are considered. Numerical conditions of occurrence of such the phenomenon are provided.