Magnalis is a rock terrestrial with an atmosphere of sulphur dioxide and trace amounts of helium. Scans reveal ancient lava plains on the surface, implying a geologically active past. The crust consists of sulphur and basalts, but the planet's mass suggests a core or iron and heavier elements. Cursory drill coring suggests the possibility of simple subterranean life.
Note: This planet can be surveyed for a Turian Insignia.