Mega Stone

Mega Mewtwo Y, the first Mega Evolved Pokémon revealed.

Mega Stones (メガストーン Mega Sutoon) are evolutionary stones that allow certain Pokémon to reach their final form for one-evolution families and second/true final form for two-evolution/branch-evolution families. These stones are worn as some sort of accessory for the Pokémon, but disappear upon Mega Evolving, reappearing after the battle they're involved in is over.

Certain Pokémon will be able to Mega Evolve with the use of a Mega Stone or, in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, having the respective Mega Stone present in the bag. However, the Pokémon will devolve into to their pre-evolved form after the battle or when the Pokémon faints. Rayquaza is the only Pokémon that doesn't require a Mega Stone to evolve.

Mega Stone Locations

X and Y

List of Mega Stone Locations
Name	Location	Pokémon
Venusaurite	Professor Sycamore's Laboratory in Lumiose City (if chosen as starter). Vernal Avenue Stone Emporium in Lumiose City (if not chosen as starter).	Mega Venusaur
Blastoisinite	Professor Sycamore's Laboratory in Lumiose City (if chosen as starter). Vernal Avenue Stone Emporium in Lumiose City (if not chosen as starter).	Mega Blastoise
Alakazite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in the hidden passage in Reflection Cave B2F.	Mega Alakazam
Gengarite	Given by a Hex Maniac in Laverre City if player character has already seen a Haunter.	Mega Gengar
Kangaskhanite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Glittering Cave.	Mega Kangaskhan
Gyaradosite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Couriway Town.	Mega Gyarados
Aerodactylite	Given in Ambrette Town.	Mega Aerodactyl
Ampharosite	Given in Azure Bay.	Mega Ampharos
Scizorite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in the Frost Cavern behind an Abomasnow	Mega Scizor
Blazikenite	Event Torchic	Mega Blaziken
Gardevoirite	Held by Ralts traded from Champion Diantha in Café Soleil in Lumiose City, Southern Boulevard.	Mega Gardevoir
Mawilite	Camphrier Town.	Mega Mawile
Medichamite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Laverre City.	Mega Medicham
Banettite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Chamber of Emptiness.	Mega Banette
Absolite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Kiloude City.	Mega Absol
Latiasite	Unused	Mega Latias
Latiosite	Unused	Mega Latios
Garchompite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Victory Road	Mega Garchomp
Lucarionite	Held by Lucario given to the player character.	Mega Lucario
Abomasite	Given by the Abomasnow in Frost Cavern.	Mega Abomasnow

Exclusive to X

List of Mega Stone Locations
Name	Location	Pokémon
Charizardite X	Professor Sycamore's Laboratory in Lumiose City (if chosen as starter). Vernal Avenue Stone Emporium in Lumiose City (if not chosen as starter).	Mega Charizard X
Pinsirite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Santalune Forest.	Mega Pinsir
Mewtwonite X	Found in Unknown Dungeon after battling Mewtwo.	Mega Mewtwo X
Tyranitarite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Cyllage City Gym.	Mega Tyranitar
Manectite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Kalos Route 16.	Mega Manectric

Exclusive to Y

List of Mega Stone Locations
Name	Location	Pokémon
Charizardite Y	Professor Sycamore's Laboratory in Lumiose City (if chosen as starter). Vernal Avenue Stone Emporium in Lumiose City (if not chosen as starter).	Mega Charizard Y
Mewtwonite Y	Found in Unknown Dungeon after battling Mewtwo.	Mega Mewtwo Y
Heracronite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Santalune Forest.	Mega Heracross
Houndoominite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Kalos Route 16.	Mega Houndoom
Aggronite	After upgrading the Mega Ring, during 8:00 and 8:59 PM this can be found in Cyllage City Gym.	Mega Aggron

Omega Ruby and Alpha Sapphire

List of Mega Stone Locations
Name	Location	Pokémon
Venusaurite	This can be obtained in Route 119.	Mega Venusaur
Charizardite X	This can be obtained in the Fiery Path.	Mega Charizard X
Charizardite Y	This can be obtained in the Scorched Slab.	Mega Charizard Y
Blastoisinite	This can be obtained in the S.S. Tidal.	Mega Blastoise
Beedrilite	This can be obtained in Sea Mauville.	Mega Beedrill
Pidgeotite	This can be obtained after showing Mr. Stone the Intriguing Stone in the Devon Corporation building.	Mega Pidgeot
Alakazite	This can be obtained at the Slateport City Market.	Mega Alakazam
Slowbronite	This can be obtained after giving a man four Shoal Salts and four Shoal Shells in the Shoal Cave.	Mega Slowbro
Gengarite	This can be obtained in the Battle Resort.	Mega Gengar
Kangaskhanite	This can be obtained in Pacifidlog Town.	Mega Kangaskhan
Pinsirite	This can obtained in Route 124.	Mega Pinsir
Gyaradosite	This can be obtained after finding it in the mouth of a Poochyena in Route 123.	Mega Gyarados
Aerodactylite	This can be obtained in Meteor Falls.	Mega Aerodactyl
Mewtwonite X	This can obtained in Littleroot Town.	Mega Mewtwo X
Mewtwonite Y	This can be obtained in the Pokémon League.	Mega Mewtwo Y
Ampharosite	This can be obtained in New Mauville.	Mega Ampharos
Steelixite	This can be obtained in the Granite Cave.	Mega Steelix
Scizorite	This can obtained in the Petalburg Woods.	Mega Scizor
Heracronite	This can be obtained in Route 127.	Mega Heracross
Houndoominite	This can be obtained in Lavaridge Town.	Mega Houndoom
Tyranitarite	This can obtained in the Jagged Pass.	Mega Tyranitar
Sceptilite	This can be obtained in Route 120 (if chosen as starter) This can be obtained in Route 114 by the Stone Saleman (if not chosen as starter).	Mega Sceptile
Blazikenite	This can be obtained in Route 120 (if chosen as starter) This can be obtained in Route 114 by the Stone Salesman (if not chosen as starter).	Mega Blaziken
Swampertite	This can be obtained in Route 120 (if chosen as starter) This can be obtained in Route 114 by the Stone Salesman (if not chosen as starter).	Mega Swampert
Gardevoirite	This can obtained from Wanda in Verdanturf Town.	Mega Gardevoir
Mawilite	This can be obtained in Verdanturf Town.	Mega Mawile
Aggronite	This can be obtained in the Rusturf Tunnel.	Mega Aggron
Medichamite	This can be obtained in Mt. Pyre.	Mega Medicham
Manectite	This can obtained in Route 110 on the Cycling Road.	Mega Manectric
Sablenite	This can be obtained in Sootopolis City.	Mega Sableye
Sharpedonite	This can be obtained in the Battle Resort (Omega Ruby). This can be obtained in the Aqua Hideout in the Delta Episode (Alpha Sapphire).	Mega Sharpedo
Cameruptite	This can be obtained in the Magma Hideout in the Delta Episode (Omega Ruby). This can be obtained in the Battle Resort (Alpha Sapphire).	Mega Camerupt
Altarianite	This can be obtained after showing the Collector Altaria in Lilycove City.	Mega Altaria
Absolite	This can obtained in the Safari Zone.	Mega Absol
Glalitite	This can be obtained in the lowest floor of Shoal Cave during low tide.	Mega Glalie
Salamencite	This can be obtained from Zinnia's grandmother in the Meteor Falls after the Delta Episode.	Mega Salamence
Metagrossite	This can be obtained by defeating Steven Stone in the rematch after completing the Delta Episode. This can be obtained by downloading the Shiny Beldum event.	Mega Metagross
Latiasite	This can be obtained from the player character's mother in Littleroot Town (Omega Ruby). This is held by Latias upon joining team (Alpha Sapphire).	Mega Latias
Latiosite	This is held by Latios upon joining team (Omega Ruby). This can be obtained by the player character's mother in Littleroot Town (Alpha Sapphire).	Mega Latios
N/A	Rayquaza doesn't need to Mega Stone to Mega Evolve. Instead, it needs to learn the move Dragon Ascent in order to be able to Mega Evolve.	Mega Rayquaza
Lopunnite	This can be obtained from a man in a suit in the Mauville Hills located in Mauville City.	Mega Lopunny
Garchompite	This can be obtained from Aarune in Fortree City after achieving Platinum Rank.	Mega Garchomp
Lucarionite	This can be obtained from Lisia after beating all Master rank Contests and then defeating her.	Mega Lucario
Abomasite	This can be obtained in Route 123 in the Berry Garden.	Mega Abomasnow
Galladite	This can be obtained from Professor Cozmo in Fallarbor Town after completing the Delta Episode.	Mega Gallade
Audinite	This can be obtained from Looker in the Battle Resort.	Mega Audino
Diancite	This can be obtained by entering any Pokémon Center after receiving Diancie by downloading the event.	Mega Diancie

Sun and Moon

List of Mega Stone Locations
Name	Location	Pokémon
Charizardite Y	Given by Red after defeating him in the Single Battle Challenge at the Battle Tree.	Mega Charizard Y
Charizardite X	Given by Red after defeating him in the Single Battle Challenge at the Battle Tree.	Mega Charizard X
Venusaurite	Given by Red after defeating him in the Single Battle Challenge at the Battle Tree.	Mega Venusaur
Blastoisinite	Given by Red after defeating him in the Single Battle Challenge at the Battle Tree.	Mega Blastoise
Beedrilite	Distributed by event if the player typed the code INTIMIDATE. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Beedrill
Pidgeotite	Distributed by event if the player typed the code AZUL. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Pidgeot
Alakazite	Received from Dexio after beating him (Post-Game)	Mega Alakazam
Slowbronite	Bought at the Battle Tree	Mega Slowbro
Gengarite	Bought at the Battle Tree	Mega Gengar
Kangaskhanite	Bought at the Battle Tree	Mega Kangaskhan
Gyaradosite	Bought at the Battle Tree	Mega Gyarados
Aerodactylite	Bought at the Battle Tree	Mega Aerodactyl
Mewtwonite X	Distributed by event if the player typed the code M2DESCENT. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Mewtwo X
Mewtwonite Y	Distributed by event if the player typed the code M2DESCENT. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Mewtwo Y
Steelixite	Distributed by event if the player typed the code AZUL. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Steelix
Scizorite	Bought at the Battle Tree	Mega Scizor
Heracronite	Distributed by event if the player typed the code AZUL. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Heracross
Houndoominite	Distributed by event if the player typed the code AZUL. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Houndoom
Sablenite	Bought at the Battle Tree	Mega Sableye
Mawilite	Distributed by event if the player typed the code INTIMIDATE. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Mawile
Medichamite	Distributed by event if the player typed the code INTIMIDATE. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Medicham
Sharpedonite	Bought at the Battle Tree	Mega Sharpedo
Absolite	Bought at the Battle Tree	Mega Absol
Glalitite	Bought at the Battle Tree	Mega Glalie
Salamencite	Bought at the Battle Tree	Mega Salamence
Metagrossite	Bought at the Battle Tree	Mega Metagross
Garchompite	Bought at the Battle Tree	Mega Garchomp
Lucarionite	Bought at the Battle Tree	Mega Lucario
Audinite	Distributed by event if the player typed the code INTIMIDATE. Upon doing this, they would receive a Mystery Gift with this Key Stone.	Mega Audino

Let's Go Pikachu and Let's Go Eevee

List of Mega Stone Locations
Name	Location	Pokémon
Charizardite Y	Given by Blue which unlock the final Gym in Viridian City.	Mega Charizard Y
Charizardite X	Given by Blue which unlock the final Gym in Viridian City.	Mega Charizard X
Venusaurite	Given by Blue which unlock the final Gym in Viridian City.	Mega Venusaur
Blastoisinite	Given by Blue which unlock the final Gym in Viridian City.	Mega Blastoise
Alakazite	Bought at the Indigo Plateau	Mega Alakazam
Beedrilite	Bought at the Indigo Plateau	Mega Beedrill
Pidgeotite	Bought at the Indigo Plateau	Mega Pidgeot
Gengarite	Bought at the Indigo Plateau	Mega Gengar
Kangaskhanite	Bought at the Indigo Plateau	Mega Kangaskhan
Gyaradosite	Bought at the Indigo Plateau	Mega Gyarados
Aerodactylite	Bought at the Indigo Plateau	Mega Aerodactyl
Slowbronite	Bought at the Indigo Plateau	Mega Slowbro
Mewtwonite X	Given by Green after defeating her at Cerulean Cave	Mega Mewtwo X
Mewtwonite Y	Given by Green after defeating her at Cerulean Cave	Mega Mewtwo Y

Trivia

Most Mega Stones have a "-ite" or "-nite" on the end of it preceded by the related Pokémon's name. For example, Lucario's Mega Stone is called "Lucarionite", Blaziken's Mega Stone is "Blazikenite". There are a few exceptions, however:
- Some Pokémon do not have their whole name in their Mega Stone. For example, Blastoise's Mega Stone is called "Blastoisinite", Sableye's Mega Stone is called "Sablenite".)
- Glalie is the only Pokémon whose Mega Stone, "Glalitite", neither contains its whole name nor contains "ite" or "nite" at the end but "tite" instead.