Berkelium

Berkelium is an ore found at the Collapsing Reality (5900-6000m). It used for MOP Level 50 and the Galaxite Pickaxe. You need 39 for the Pickaxe and (someone tell me how many u need for the mop upgrade pls) It drops around 50B XP.

Trivia:

In real life, Berkelium is radioactive and rare on earth.