I really like this word, it just feels bright when you say it outloud.
scintillescent (sint-uh-LES-uhnt) adjective
Sparkling or twinkling.
[From Latin scintillare (to sparkle), from scintilla (spark).]
-Anu Garg (gargATwordsmith.org)
“She tried to discern his thoughts as they stood in the scintillescent moonlight, the dark forest pressing in on them.” Chelsea Quinn Yarbro; A Feast In Exile; Tor Books; 2002.