Thundrillium 2011.jpg
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For the article about the 1980's version of this item, see Thundrillium.

Thundrillium is a mineral that occurs naturally on Third Earth. Existing as bright pink crystals, Thundrillium is found embedded in rocks on mountainous areas. The richest source of Thundrillium was the Cloud Peak Mine which was eventually destroyed in the battle between the ThunderCats and Grune and his forces.

Almost all of Mumm-Ra's vehicles and machines use Thundrillium as a fuel to operate. The ThunderTank also runs mainly on Thundrillium.

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