Rare Alloy

Exploration Stage: Foggy Backstreet
From: Kira Woodville
Description: The scavenger’s deciphered text says that the spacial bomb’s core must be made of a special alloy. I think I know what it’s talking about. We need a rare energy sphere for the bomb’s prototype. Can you help me find it?
Completed: Incredible, you found a real energy sphere! These were made from alloys of rare minerals from the City mines, where the Collector himself conducted excavations. I heard that each of these spheres contains energy that hasn’t been fully studied.