Quote Originally Posted by lyndwyrm View Post
You cannot use gold needles while petrified, but you can be targeted by a party member and healed of petrification by a gold needle. So it would be useful for whoever isn't going to be petrified to carry around, but not the one that will be petrified.

I can only confirm this on petrification on the world map, haukke HM, and CT though. I don't know if petrification in coil2 is a separate debuff like the paralysis from high voltage originally was.
It's called Stone Curse instead of just "Petrified" or whatever so I imagine it isn't possible to use a gold needle on.