The effects of a complex nucleating agent with different ratios of MgF2/LiF on the crystallization and performance of lithium aluminum silicate glasses

•The effects of MgF2/LiF on the mechanism and property were studied.•The higher ratio of MgF2 (F6) can stimulate precipitation of ZrTiO4 phase faster.•F6 can accelerate the transition of β-quartz to β-spodumene faster.•F6 has worse property in parent glass, but the better crystallization property.•F6 can add greater frequency factor and reduce fewer crystallization activation energy.