Plasma Mine (Fallout 3)

This mine, similar to the frag mines(Only more powerful), erupts into a fiery cloud of green plasma when it explodes. It is often found on Enclave Officers, Enclave Soldiers, and in Enclave crates in the outposts that appear in the wastelands. It is particularly effective against robot and electronic enemies. It is also almost never found in the wasteland armed.

Places Plasma Mines Can Be Found:
-There is one inside the VSS armory after you complete Operation: Anchorage

-May be found in mine boxes, more commonly so in areas with robotic hostiles.