Crystal of Knowledge

The Crystal of Knowledge is a powerful relic featured in Smallville. When merged with the three stone of Water, Fire and Air. 
After Clark merged the Crystals of Fire and Air together, the two revealed to him that the Crystal of Water was at Luthor mansion. Taking the stone from Lex's vault, Clark successfully merged them together into the Crystal of Knowledge, which he used to make the fortress of solitude.
Since the moment Lionel held the stone in his hand, the Kryptonian knowledge downloaded into him. He became an emissary and vessel for Jor-El to take over wherever Clark was in mortal danger
Category:Crystals
Category:Magical Objects
Category:Smallville objects
Category:Superman objects