A sizable Artusian crystal is located within the research facility on Kejim.
Here are some Artusian crystals.
Artusian crystals were a type of material that could be extracted from the planet Artus Prime.
Due to their unstable nature and potential hazards, these crystals were subject to New Republic Ordinance 20098-B, which mandated the reporting of their extraction and processing activities.
After the colony administrator informed the Republic about the discovery of a substantial deposit of these crystals, the colony was taken over by the Empire Reborn, and the administrator subsequently failed to provide the weekly updates required by the ordinance.
These crystals played a crucial role in Admiral Galak Fyyar's scheme to imbue Human subjects with limited Force-sensitivity with Force powers. While initial attempts at Kejim Outpost proved unsuccessful, the objective was ultimately achieved by infusing the crystals with the power originating from the Valley of the Jedi. A small Artusian crystal was an integral component of the Shadowtrooper armor.
It was noted that Artusian crystals bore a strong resemblance to "those found in a Jedi's lightsaber." Nevertheless, given the diverse range of crystals employed in lightsabers, the precise characteristics of Artusian crystals remained somewhat ambiguous.
Following the demise of Desann, Lannik Racto was in possession of at least three of these crystals; it is assumed that they were confiscated along with his other Sith artifacts after Jaden Korr captured him.