They can be found in resource disks that glow blue.
These are based on opinions and may not be 100% true. These should be viewed as advice for finding the resource until better facts are proven.
|Saturn||Piscinas||Survival (Dark Sector)||26 - 36||Grineer Asteroid|
|Ceres||Gabii||Survival (Dark Sector)||15 - 25||Grineer Galleon|