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Lead fluoroborate and fluorosilicate glasses codoped with Nd3+/La3+, Er3+/Lu3+ and Er3+/Yb3+/Lu3+ - have been synthesized. Glass-ceramics have been made by heat-treatment. In a glass-ceramic the rare-earth ions were located in fluoride crystal nanoparticles distributed in a glass. Glass-ceramics with a greater proportion of one crystalline phase than in the case of doping with one activator have been obtained.