If it's to setup and cycle a tank sure, you can use whatever rock you want. Whether it's cured or not, you're going to have die off during the cycle. Your tank after being cycled will have made all of the rock live.
Lots of people use mostly dry rock and seed it with a few pieces of live rock from an established system.
One thing to mention is dry rock is not live rock. It will be once the cycle is complete and the tank is up for a bit.