Black Materia ( Final Fantasy VII ) The Black Materia is a mysterious and incredibly powerful Materia , as well as one of the oldest , having existed since the time of Jenova and the Ancients in " Final Fantasy VII " . It and its counterpart , the White Materia , are the two unique Materia , there being only one of each . It is used to summon the " Ultimate Destructive Magic " , Meteor , which has the power to destroy the entire Planet . Few know of its existence , let alone how to use it . Story . After Sephiroth fell into the Lifestream following the Nibelheim Incident , he concocted his plan for world domination . Immersed in the Lifestream , he learned of the Black Materia and schemed to use it to summon a Meteor upon the Planet and absorb the Lifestream ' s energy as it would rush to heal the Planet , ascending to godhood . Upon learning Sephiroth is seeking the Black Materia , the party rushes to the Temple of the Ancients to try to stop Sephiroth from obtaining it . They discover the temple itself is the Materia , transfigured by the Ancients . It can only be transformed into Materia by solving its puzzles but the person attempting to obtain the Materia would be crushed within the Black Materia as a final defense against any evil trying to use it . Cait Sith offers to use his mechanical body to solve the puzzles . Unlocking the Black Materia , he is destroyed but a second Cait Sith arrives to take his place . Cloud retrieves the Black Materia from the hole left in the temple ' s place , but Sephiroth bends his will through the Jenova cells in Cloud ' s body and forces Cloud to pass it over to his control . After defeating Jenova∙DEATH in Whirlwind Maze , the party reclaims the Black Materia . Cloud can entrust it to either Barret Wallace or Red XIII , although no matter whom he gives it to , Sephiroth tricks the holder into returning it to Cloud who delivers it to Sephiroth ' s true form resting in a Materia cocoon within the Northern Cave . Sephiroth uses it to summon Meteor before the Weapons awaken , and the Materia is never heard of again . Profile . As its name suggests , the Black Materia is dark , appearing purple , blue , or black depending on the light . The Materia is large enough to fill the holder ' s palm . In its transfigured form as the Temple of the Ancients it is in the shape of a ziggurat ( step pyramid ) , with its entrance at the top of a long staircase in a manner similar to the pyramids of the Aztecs . Within it are several passages , some of which have carved murals . The Black Materia is the strongest known Materia . Sephiroth can only utilize its power among the abundance of Lifestream energy at the Northern Cave . Other appearances . " Final Fantasy Tactics " . There is an Artefact that can be obtained from an Errands called Black Materia . " Final Fantasy Record Keeper " . Black Materia is a Super Soul Break for Sephiroth , learnt from the katana Yoshiyuki ( VII ) . A physical attack , Sephiroth summons the stone to transform into Meteor fragments that crush a single foe four times in succession . Once mastered and integrated , Sephiroth also gains 10 ATK . Merchandise . Because of its ties to Sephiroth , the Black Materia has been released in merchandise as an item related to him , and is the focus of several " Final Fantasy " pendants and keychains .