Ceramic materials based on the tails of benefication of vermiculite and apatite-nepheline ores

Possibilities of obtaining building ceramics on the basis of "tailings" of concentration of vermiculite and apatite-nepheline ores have been investigated. Ceramic masses are proposed that are promising for the production of facing tiles, as well as solid and hollow bricks with improved physical and mechanical characteristics. Tab. 3, ill. 2, bibliography: 1 title.