Celestial Crystal is a glowstone-like block found in the Promised Land on the underside of floating islands. When broken it drops four Celestial Crystal Shards which can be re-combined similar to glowstone dust. File:FTItCqb.png The shards are also used to make ambrosia. Five are needed to create a Celestial Lens, required to make a Sacrificial Focus. File:KtvpxQv.png