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Bet you've never been this alien before, huh? Don't worry, you'll grow into him. Probably.

Alien Force Ben to Ben about Chromastone.[1]

Chromastone is the Omnitrix's DNA sample of a Crystalsapien from the planet Petropia.


Chromastone is a silicon-based alien made of extremely durable crystal. His body is overall indigo, with several dark lines and spots. His hands and face are magenta, and he also sports six magenta shards on his back, two on his chest, and one on the top of his head that resembles a horn. His face consists of a mouth and one large green eye at the center.

Chromastone wears the original Omnitrix symbol on his chest.

Powers and Abilities

Chromastone can absorb and channel energy into ultraviolet beams and fire them as energy blasts from either his hands or from the nine shards on his body. These ultraviolet beams are powerful enough to knock back a runaway Ferris wheel or even a Celestialsapien.[1]

Chromastone can project a beam of light from his hands for illumination purposes.

Chromastone possesses enhanced durability thanks to his very dense and crystalline skin, which allows him to withstand being thrown against several vehicles at once.

Chromastone possesses enhanced strength, being able to lift heavy loads while building a trap for Alien X and carry Gwen while running from a runaway Ferris wheel.[1]


Although Chromastone is highly durable, he is not completely indestructible, as he can be shattered by extreme force.

Despite his enhanced strength, there is a limit to how strong Chromastone is.

Chromastone is vulnerable to the telekinetic abilities of a Celestialsapien.[1]


Ben 10


Ben 10

Season 5


  • Duncan Rouleau initially stated that there were no plans for Chromastone to appear in the reboot,[DR 1] most likely to avoid spoilers for Alien X-Tinction.
  • Chromastone's design in the reboot is mostly similar to his Classic counterpart's appearance in Alien Force and Ultimate Alien except his head and face have a slightly different design.
  • Chromastone is one of five regular aliens featured in the reboot to have a green Omnitrix symbol, the others being Alien X, Big Chill, Ampfibian, and Bloxx.


Duncan Rouleau

Introduced in Season 1 CannonboltDiamondheadFour ArmsGaxGrey MatterHeatblastOverflowStinkflyUpgradeWildvineXLR8
Introduced in Season 2 RathShock Rock
Introduced in Season 3 HumungousaurSlapback
Introduced in Season 4 GoopJetrayWay Big
Introduced in Season 5 Alien XBig ChillBloxxBuzzshockChromastoneRipjawsSpidermonkeySurge
Omni-Enhanced Aliens CannonboltDiamondheadFour ArmsGrey MatterHeatblastOverflowStinkflyWildvineXLR8
Omni-Kix Aliens CannonboltDiamondheadFour ArmsHeatblastHumungousaurJetrayRathShock RockSlapbackXLR8
Omni-Naut Aliens HeatblastJetrayHumungousaurShock Rock
Fusion Aliens Amalgam AlienAmalgam BenGrey ArmsXLRArmBlastDiamondHeat
Non-Canon Aliens Banana AlienBlack Hat AlienHotdawgMole-StacheScooter Alien
Non-Canon Fusion Aliens Omnitrix Glitch FusionDiamondhead-Humungousaur FusionRath ArmsShock Blast