Cryomarble

There is only one recipe for how to craft cryomarble. So you take 3 (three) Cryomarble shards and create them into a piece of Cryomarble. From this point, you are able to upgrade tools of iron into cryomarble, giving them greatness and netherite.
Cryomarble is created when the storm bolts come out of the sky into the ground. From this process cryomarble is created.