As an expert in the field of superhero lore and materials science, I can provide a detailed answer to your question.

Iron Man's suit is not made out of vibranium. The suit, as depicted in the Marvel Comics and the Marvel Cinematic Universe (MCU), is primarily composed of a fictional, highly advanced alloy known as **"Arc Reactor-powered gold-titanium"**. This alloy is depicted as being incredibly strong, lightweight, and durable, which are all properties that would be desirable for a suit of armor designed for combat and flight.

Vibranium, on the other hand, is a rare and powerful substance in the Marvel Universe that is best known for its ability to absorb and dissipate kinetic energy, making it nearly indestructible. It is most famously associated with Black Panther's homeland of Wakanda and is used in the construction of his suit and other advanced Wakandan technology.

While vibranium is an incredibly valuable and potent material, it is not the primary component of Iron Man's suit. However, it is worth noting that in some comic book storylines and alternate universes, Iron Man has been known to utilize vibranium in the construction of his armor, but this is not the case in the mainstream continuity or the MCU.

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We know that Adamantium is a fictional, near indestructable metal in the Marvel Comics, and (in the comics) is actually used in the creation of Captain America's shield, which is made of a Vibranium-Adamantium alloy.read more >>