Crystallization Crystallization is a recurring phenomenon throughout the " Final Fantasy " series . It refers to a process in which a subject or being becomes a crystal . Appearances . " Final Fantasy VI " . Espers turn into magicite upon their death . Possessing magicite allows ordinary humans to learn magic . Kefka gains the power to crystallize live espers , its animation resembling the spell Banish . Espers can also crystallize into magicite at will without being on the brink of death . " Final Fantasy VII " . Lifestream can crystallize into Materia . Usually this takes a long time , but the process can be expedited by Mako Reactor s . Crystallized Lifestream has magical properties and allows the wielder to cast spells , among having other effects . Dummied text from the game suggests that summoned monsters are great spirits that crystallized themselves into Materia . After falling into the Lifestream , Sephiroth becomes crystallized deep in the Northern Cave . He remains there acting through a shapeshifted Jenova . When Rufus Shinra and the other executives of the Shinra Electric Power Company discover the Northern Cave where Sephiroth remains , they find it covered in crystallized Lifestream : Materia , and deduce it to be the fabled Promised Land . " Dirge of Cerberus - Final Fantasy VII - " . Sephiroth ' s biological mother , Lucrecia Crescent , is crystallized within a solidified Lifestream fountain in a remote cave east of Nibelheim . She has sealed herself away due to being unable to kill herself and feeling she is unfit to reside with the rest of humanity . It is stated in the " Dirge of Cerberus - Final Fantasy VII - Official Complete Guide " by Scenario Coordinator Hiroki Chiba and Producer Yoshinori Kitase that Lucrecia is still alive , that the crystal she resides in is a product of Lucrecia herself , and that her imprisonment within it is self - imposed . " Final Fantasy X " . Pyreflies can crystallize into spheres by reacting to people ' s feelings and memories and binding them with images and audio . Spheres make use of these properties of pyreflies to make recordings . The raw material for spheres is water that contains a high concentration of pyreflies , gathered from specific locations , such as the Macalania springs . Feolthanos crystallizes into a gigantic Auralith , having been stealing the aegyl s ' anima for thousands of years . " Final Fantasy XIII " . When a l ' Cie , a human branded by a fal ' Cie , has completed their Focus , they will turn into a crystal . The appearance of a l ' Cie ' s crystal varies depending on the type of fal ' Cie that brands them . Most have their bodies naked and transparent , surrounded by additional crystal pillars , but some l ' Cie retain their original appearance ( and clothing ) , and one is seen frozen inside a large crystal . If a l ' Cie fails their Focus they turn into a crystalline monster known as a Cie ' th . Cie ' th can eventually petrify into Cie ' th Stone s with the l ' Cie ' s crystal embedded in it . Lake Bresha is crystallized when the Pulse Vestige housing the fal ' Cie Anima falls into it . The water turned to crystal , the party can cross it on foot . When Cocoon falls from the sky , Ragnarok erects a crystal pillar to support the now - crystallized shell of Cocoon above Gran Pulse . " Final Fantasy XIII - 2 " . Monsters have a chance of turning into a crystal when defeated in battle . This allows them to be used as Paradigm Pack allies and develop them through the Crystarium . People ' s memories can also crystallize into crystals known as fragment s , found throughout the timeline . After Gran Pulse merges with Valhalla , a crystallized Lightning sits on the goddess Etro ' s throne . According to a Datalog entry and the " " downloadable episode , Lightning crystallized herself after accepting defeat in her battle against her rival , Caius Ballad . After Lightning and the combined souls of humanity fell Bhunivelze , he turns into a colossal crystal before being sucked into the new unseen realm . The party wonders if he is really dead or merely sleeping , but Lightning is convinced humanity would persevere again should he ever return . " Final Fantasy XIV " . Crystallization sometimes occurs during heavy concentrations of aether . The most dramatic case occurred after the Battle of Silvertear Skies , in which the landscape surrounding Lake Silvertear underwent mass crystallization due to the dying wyrmking ' s life force mixing with ceruleum leaks , creating a barren landscape unlike any other . Crystallization also occurred to the fragments of Bahamut after the Battle of Carteneau , and the floating landmasses above Abalathia ' s Spine often exhibit evidence of crystallization at the bottom . " Final Fantasy Tactics " . Crystallization is related to the battle system . If a unit remains knocked out for three turns ( determined by the unit ' s Speed ) , their body will perish and become either a crystal or treasure chest ; if said unit is undead , it has a chance of reviving with a random amount of HP instead . Once a unit becomes a crystal , any units who claims the crystal can either learn the abilities of the dead unit , or fully recover their own HP and MP . The downside about learning the abilities is that the unit who claims the crystal has to have the job class available . If the player picks an ability from a crystal , all listed abilities will be learned . Any treasure chests found will contain an item the deceased unit had equipped . Monsters can also transform into crystals , but those always fully refill the target ' s HP / MP when claimed . If Ramza becomes crystallized it ' s game over . The crystals of defeated human units are based on their color palette . The party and guest s ( palette 00 ) have the teal - gray crystal , the Order of the Northern Sky units ( palette 01 ) have the bright blue crystal , the Order of the Southern Sky units ( palette 02 ) have the red crystal , the Corpse Brigade / Baert Trading Company / random battle units ( palette 03 ) have the yellow crystal , and the Church of Glabados units ( palette 04 ) have the purplish - gray crystal . " Final Fantasy Type - 0 " . The world of Orience is governed by the four Crystals of Orience who are sentient beings able to brand l ' Cie to carry out their Will . Those the Crystal deems successful become sublimated and turn into crystal . This also crystallizes the sublimated l ' Cie ' s final thoughts into a crystal shard known as a l ' Cie Stone . During the First Battle of Judecca the Azure Dragon Crystal Primus l ' Cie Soryu crystallizes the clouds with its breath . " " . High Commander Jegran of the Royal Army is revealed to be a Crystal Bearer with the power of crystallization . Upon touching someone with his right hand , if he so wills it , the person or creature will be crystallized , transforming into red crystals in the shape of the living being it once was . Said crystals are easily shattered , and are said by Amidatelion to be one of the elements disrupting the Crystal Principle . Jegran once planned to crystallize every member of the Selkie Guild so they could serve as fuel to the crystal reactor of the battleship " Alexis " , but his plans were crushed by the efforts of Layle , Amidatelion , Keiss , Belle and Vaigali . Etymology . is the ( natural or artificial ) process of formation of solid crystals precipitating from a solution , melt or more rarely deposited directly from a gas .