Glass ceramic as well as preparation method and application thereof

The invention relates to microcrystalline glass as well as a preparation method and application thereof, and belongs to the technical field of luminescent glass. The preparation method of the microcrystalline glass provided by the invention comprises the following steps: weighing raw materials of SiO2, MgO, CaO and Eu2O3, grinding, uniformly mixing, heating in a reducing atmosphere to melt the raw materials into a melt, preserving heat, and cooling and forming in different modes to prepare the microcrystalline glass with spherical nanocrystalline or dendritic microcrystal structural characteristics. A traditional multi-step preparation method is optimized, only one-time heating and cooling are needed, operation is easy and convenient, conditions are easy to control, and the prepared microcrystalline glass has the advantages of being hard in texture, compact, uniform and stable in property, has the advantages of being high in transparency, stable in luminescence performance and long in afterglow and has wide a