The bluestone tailings are quickly expanded in China with the continuous utilization and mining of bluestone resources. The incremental recycling of bluestone tailings is important to solve the resources waste and environmental pollution. This study aims to reuse the bluestone tailings as the main material to prepare α-cordierite glass-ceramics based on melting process. The results show that the nucleation temperature, crystallization peak temperature and the activation energy for crystallization decreased gradually with increasing the percentage of bluestone tailings. The complete preparation parameters of α-cordierite glass-ceramics include a bluestone tailings percentage of 70%, a heating rate of 5 ^oC·min^-1, a crystallization duration of 1.5 h, a crystallization temperature of 970 ^oC, a nucleation temperature of 830 ^oC, and a nucleation duration of 1.0 h. The performances analyses reveals that the α-cordierite glass-ceramics based on the optimized parameters exhibits high density and Vickers hardness, low dielectric loss and water absorption, and strong chemical resistance

Keywords: cordierite glass-ceramics, bluestone tailings, crystallization kinetics, microstructure and phase transition