Imaginarium (crystal)

Imaginarium is a type of crystal that is found in the Smurf Forest in the EMPATH: The Luckiest Smurf story series. It has properties that allow for the creation of realistic artificial environments for the user of the crystal. Homnibus and the Smurfs both use Imaginarium crystals for their own Imaginariums, with the latter also using a crystal for the creation of the HoloSmurf.