This deep inside the Glowing Planet, things started to get weird, especially when they entered the boneyard. The increased density of naturally-formed resonating exotics caused everyone to feel as if they took a dive into a lukewarm bath.
The pressure they felt could solely be felt in their minds. No matter how much they shielded their bodies, they couldn't escape the pervasive thrum of power that radiated off the pieces of Rorach's Bone.
In that regard, the mining machines had a field day excavating all of the trace materials. Picking up a couple of milligrams here and there became as easy as breathing water. However, the Mech Corps ceased to care about these scraps and started to hunger for larger samples of Rorach's Bone.
The larger the piece, the better its potential. A thousand pinches of Rorach's Bone couldn't hold a candle to a single fingertip-sized sample. Most of the mining machines focused on seeking even larger samples of Rorach's Bone.