be lively or brilliant or exhibit virtuosity "The musical performance sparkled" "A scintillating conversation" "his playing coruscated throughout the concert hall"
physics: fluoresce momentarily when struck by a charged particle or high-energy photon "the phosphor fluoresced"
emit or reflect light in a flickering manner "Does a constellation twinkle more brightly than a single star?"
reflect brightly "Unquarried marble sparkled on the hillside"
give off "the substance scintillated sparks and flashes"