"Pick up raw Eridium" is an objective in the sidequest Minecart Mischief in Borderlands 2
Walkthrough[edit]
Go to the left-hand side of the crusher itself. You will see 5 chunks of Raw Eridium sitting on the ground. Grab them all.
To turn this quest in, just interact with the chuck of rock that the Eridium came out of.
