1.give off;

the substance scintillated sparks and flashes

2.reflect brightly;

Unquarried marble sparkled on the hillside

3.emit or reflect light in a flickering manner;

Does a constellation twinkle more brightly than a single star?

4.physics: fluoresce momentarily when struck by a charged particle or high-energy photon;

the phosphor fluoresced

5.be lively or brilliant or exhibit virtuosity;

The musical performance sparkled