In Thor: The Dark World, it's implied that long ago, the Dark Elves turned an Infinity Stone into the Aether. In Guardians of the Galaxy, we see an

Infinity Stone in its natural state, as described by Odin.

The Tesseract seems to not be a plain Infinity Stone, it was crafted into the familiar cube we've seen in several Marvel films.

Who turned the Space Stone into the Tesseract?

1 Answer 1


It wasn't forged, this is the form it currently resides in. In the canon Marvel universe, the appearance of the Infinity Gems, while often found in gem form, could also be changed by a user of sufficient power.

In the Marvel Cinematic Universe, the Infinity Stones appear to have very different physical appearances unlike their comic versions which all appear in the form of small gemstones.

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Just as there is no particular reason for the gems to appear as gemstones given their origins as Nemesis (the remnants of a dying godlike being who supposedly died from loneliness) their appearance was not guaranteed.

  • Each gem is a small, smooth oval, and known by their respective powers. The gems are indestructible but not immutable. On two occasions one or more of the gems have appeared in the form of deep pink spheres that were several feet in diameter.

  • On other occasions the gems have appeared in their normal shape but with different coloring (i.e. when the Soul Gem appeared to be red when worn by the Gardener).

  • In the Ultraverse, the merged gems, Nemesis, were once again separated after a climactic battle with Ultraforce and the Avengers. The space, power, soul, and mind gems morph into humanoid-like beings. The accounts of these beings are not known, as well as how these beings returned to their "gem" forms.

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Nemesis in her restored form

Conceptual Speculation

  • Given the divergent appearances of the Infinity Stones in the Marvel Cinematic Universe, it may simply be a need for visual differentiation, making each stone unique in their appearance for the viewing audience.

  • Considering their near-all powerful nature and possible sentience, their shape and overall appearance should not be difficult to change as desired.

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*Loki's staff is still in contention as the Mind Gem.

  • 2
    This answer may need some updating as, we find out in Avengers 2 that the Mind Gem is inside of the staff in and looks very similar to the comic book style gems, the same could be true for the tessaract.
    – Iankill
    Jul 17, 2015 at 17:11
  • Indeed, now that we have seen the Time Gem in Doctor Strange and The Soul Gem in Avengers: Infinity War, the last two empty boxes can be filled in with movie depictions as well.
    – TylerH
    Jan 28, 2019 at 15:40

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