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Using the electrostatic levitation method, we undercooled an NiZr melt and conducted an in-situ observation of the solidification process using a high-speed camera. Using the EBSD, RTG diffraction and HRTEM methods, we were the first to manage to describe the intermetallic glass-phase solidification process from individual atoms up to the macro-scale. We developed a tenfold twin model and demonstrated its relation to decagonal quazicrystals. In doing so, we contributed to the year-long controversial discussion about the relationship between quazicrystals and multiple twins.