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"Exonium's no hollinium, but it's worth a few credits."
―An exonium prospector[1]

Hollinium was a valuable and extremely heavy elemental metal[2] ore that was used in the creation of synthetic hyperbarides; it was considerably more valuable than exonium. It had a compound, hollinium chloride, that formed on Goroth Prime. One hundred grams of hollinium hyperbaride was used by Urias Xhaxin to buy the Free Lance.[3]

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