Glass ceramic, preparation method thereof, glass product and application

The invention relates to microcrystalline glass and a preparation method thereof, a glass product and application, and the microcrystalline glass comprises the following components in percentage by mass: 35 to 55 weight percent of SiO2, 20 to 30 weight percent of Al2O3, 0 to 6 weight percent of MgO, 0 to 10 weight percent of ZnO, 0.5 to 3 weight percent of B2O3, 0 to 3 weight percent of P2O5, 0 to 3 weight percent of Li2O, 0 to 6 weight percent of Na2O, 0 to 6 weight percent of TiO2 and 0 to 6 weight percent of ZrO2. The microcrystalline glass comprises a spinel crystal phase, a zirconium oxide crystal phase and a spodumene crystal phase, the total crystallinity is 25%-45%, and the average grain size of crystal grains of the crystal phase is 10-50 nm. The microcrystalline glass is good in optical property and mechanical property, low in raw material cost and capable of being prepared through a simple process. 本发明涉及一种微晶玻璃及其制备方法、玻璃制品和应用，按照质量百分含量，包含35wt％～55wt％的SiO2、20wt％～30wt％的Al2O3、0wt％～6wt％的MgO、0wt％～10wt％的ZnO、