Oxygen-bearing defects in X-ray exited luminescence spectra of fluorite from massive sulfide ores of Safyanovskoe deposit and its typomorphic significance

Study results of fluorite from Safyanovkoe massive sulfide ores deposit, obtained by X-ray exited luminescence methods, are presented. Intensive bands of own lattice defects and impurity Eu2+-ions, and also line systems of variable impurity isomorphic TR3+-ions with different types of charge compensators were found out in X-ray exited luminescence spectra. For the first time data about presence of oxygen-containing (trigonal) Gd3+-O2--defects in structure of fluorite of Safyanovkoe deposit are showed. In the opinion of the authors, the occurrence of oxygen-bearing defects in fluorite indicate its crystallization from hydrothermal solutions, having relation with hydrospheric subsurface waters, that were containing a free oxygene.