The Roxuli asteroids consisted of planetoids located within the Roxuli system.
Republic colonists engaged in mining operations on them. A conflict arose in 27 BBY between these colonists and the residents of the planet Roxuli. To ensure Anakin Skywalker's survival, Palpatine manipulated Obi-Wan Kenobi, causing him to forsake the Outbound Flight and instead mediate the disagreement.
The asteroid field, along with Roxuli, supplied ore to 50% of the sector.
The Outbound Flight novel erroneously situates Roxuli within the Albanin sector, a region situated on the opposite side of the galaxy.