I don't know
if you can make a new one is better
especially for those who doesn't like uncertainty
because sometimes inside the liverocks pores contains some living creatures

one of my liverock that I bought from the LFS contains a tiny crab
that crab was hiding inside the liverock pores
I didn't know until I put that liverock in my tank

lucky it's not a small mantis shrimp
L.O.L