RAW MIXTURE FOR DECORATIVE-ARTISTIC CAST MAKING Russian patent published in 1995 - IPC

FIELD: building industry. SUBSTANCE: raw mixture has, wt.-% jareg flotation calcined concentrate 30-70; egirin concentrate 5-10; sphene concentrate 10-35, and broken glass 10-30. Mixture can also contain additionally at least one component as dye from the group, CoO 0.1-2; K₂Cr₂O₇ 0.1-2 or CuSO₄·5H₂O 0.1-2. Melting point of ceramic mass is 1300-1400 C, annealing point is 650-800 C. Prepared material shows various color. EFFECT: enhanced quality of material. 2 cl, 1 tbl