Rubedo is an uncommon component that can be found on Phobos, Earth, Pluto, Europa, Sedna and the Orokin Void regions. It is usually found in quantities of 15 to 25, and is a key ingredient in the production of Warframe Chassis and Neuroptics, as well as many weapons. Although Rubedo is an uncommon resource, most recipes that use it require extremely large amounts, making it a highly farmed resource.