Stones of Power

• Created by Jor-El, sent by portal to Earth's past & hidden all over the world
• Also known as the Stones of Knowledge or simply the Elements
• 3 crystals containing all the knowledge of the 28 galaxies
• All 3 were united by Clark on the altar & became the Crystal of Knowledge;
• Used by Clark to create the Fortress of Solitude in the Arctic

• Silver Crystal with the Kryptonian symbol for "Air" (House of El)

• Clear stone with the Kryptonian symbol for "P"

• Black crystal with the Kryptonian symbol for water (Mark of Transference)