Rosarium is a synthetic element created during Protoss purging of worlds.

Scientists speculate that the psionic energies from the protoss' weapons react to rare elements in both Mineral and Vespene gas nodes. One of its most unique properties is an increased sensitivity to even low level psychic energy. This has made Rosarium useful in developing Neural interfaces and bio-metric technology.

Most advanced Ghost suits use the element to heighten reaction time in cloaking and hacking into computerized systems. Some even help non-technopaths control empty mechs like SCVs and unfamiliar vehicles instantly. Despite its great potential in electronics, it has not entered commercial use due to Dominion bans on trade citing health concerns. This ban has been met with mixed results from the other Terran powers and completely ignored by alien ones.

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