Quote Originally Posted by Matsume View Post
Highly doubtful. My assumption is that they only drop from final boss chests. A specific piece from a specific chest would be my guess.
Well I can tell you for sure that it is not only the gold chest that drops dark light, because we've gotten double drop from CC.

I thought there was a compiled list of which pieces have a chance to drop from which chests. I saw it some where...

Fairly sure all chests have a chance to drop it, its just a specific piece connected with a specific chest.