Uru is a metal ore in the Marvel Comics universe. It is unique to the Nidavellir one of the Nine Worlds. It resembles stone but it also seems to have metallic properties. It seems able to store most energies, particularly magic.

Notable characteristics

Uru is highly durable and retains enchantments very well. Its luster has been described as "badly wrought iron". When Uru is enchanted, it becomes much more durable.

Its ductility is unknown. Uru is very resistant to damage, but there is no known instance of Uru being drawn into wire.

Uru is non-sparking and is a highly immalleable metal, often requiring extreme methods to forge it (for example, the heart of a star, or an enchanted forge). Albeit very difficult to forge, weapons and items built in Uru, especially the enchanted ones, are resilient to most forms of damage.

Note: Its physical characteristics are difficult to measure, as most known samples are also heavily magically enchanted (obfuscating observed physical properties). Mjolnir was witnessed to handle enormous amounts of physical impact under extreme temperatures without deformation (e.g. shattering meteors in the cold of space) while Uroc's hand was shattered by subjecting it to liquid nitrogen and then shot by a bullet.

The main property of Uru, as discovered by Tony Stark, is its natural affinity to magic. Uru is not only easy to enchant, but also absorbs magic like a sponge, redirecting it and enhancing the natural attributes of his wielder. A suit of Iron Man armor fueled by Uru was able to channel a full blast of lighting from Mjolnir and Odinforce into a blast from its Unibeam.

The symbiotic relationship between Uru and its wielder works both ways: a mystical user, such as Thor, can lend to the Uru in his weapon his own strength, in the process making the metal stronger and more resilient.


Due to its durability and ability to hold enchantments, it is often forged into the finest weapons for the warriors of Asgard.

Uru is used as the key component in several characters' equipment, including:

Uru is also used in the bits and scoops of the trolls of Asgard, thereby enabling them to dig holes into other dimensions.

Occurrence and production

Uru is unique to the Asgard dimension. Uru is one of the most prized exports of the dwarven miners of Asgard.


Applying a permanent enchantment to Uru is very hazardous and should only be attempted by an entity with god-like abilities. Even if able to store and harness vast quantities of energy, mystical in nature or not (once in Gungnir was stored the life-force of Preston Chase, a human trapped in the armored form of the Destroyer), becomes unstable as the core of a fission central.


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See Also

Links and References

  • Uru at Wikipedia