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The xel'naga cut the Khalis and Uraj crystals from a monolithic khaydarin crystal and gave them to the protoss. The Uraj was entrusted to the Akilae Tribe and was venerated as a sacred relic. Unlike the Khalis, the Uraj took on the energies later associated with the Khala. The Akilae hid the crystal during the Aeon of Strife. Once the Strife ended the Templar Caste became the crystal's guardians and used it for meditation.
The Brood War
"We didn't. Long ago, this world was a Protoss colony called Khyrador. When the strife between our tribes escalated, this planet and the Uraj Crystal were abandoned. These Terrans have come here only recently."
During the Brood War, the crystal was found by Sarah Kerrigan and a protoss army led by Praetor Artanis, Dark Prelate Zeratul and the Executor. They overcame the Terran Dominion defenses and sent in a probe to gather it up.
The protoss returned to Shakuras with the crystals. Artanis carried the Uraj into the xel'naga temple and inserted the crystal into the structure's mechanisms. The temple's activation created a giant energy burst that scoured the zerg from the planet.
During the End War, as Artanis made preparations to overload the xel'naga temple of Shakuras, he lamented that the protoss no longer had access to the Uraj or Khalis crystals, which lengthened the temple's configuration procedures.
- Chris Metzen, StarCraft Legacy staff. 2009-04-03. SC:L Metzen Interview - Lore Exclusive. StarCraft Legacy. Accessed 2009-05-18.
- Blizzard Entertainment. 2010-07-24. Koprulu Sector Systems: Braxis. Blizzard Entertainment. Accessed 2010-07-24.
- Blizzard Entertainment. StarCraft: Brood War. Vivendi Games. Mission: The Quest for Uraj (in English). 1998.
- Blizzard Entertainment. StarCraft: Brood War. Vivendi Games. Mission: Countdown (in English). 1998.
- Blizzard Entertainment. StarCraft: Brood War. Vivendi Games. Cinematic: Fury of the Xel'Naga (in English). 1998.
- Blizzard Entertainment. StarCraft II: Legacy of the Void. (Activision Blizzard). PC. Mission: Legacy of the Void, Last Stand (in English). 2015-11-10.
The list of authors can be seen in the page history of Psionic technology (StarCraft)#Uraj crystals.
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