Lu Yuan continued rummaging through the box, where he found a few things that resembled crystals and seemed somewhat useful.
[Muddy Spirit Crystal, transformed from a certain crystal due to complex geographical factors. It contains a small amount of Ideal Energy, which can be used to assist in the cultivation of the Extraordinary Spark.]
[Once its energy is exhausted, it will slowly recharge itself with the Idealistic tide. (Inferior Grade·Natural Oddity)]
Lu Yuan already had better spirit crystals, and he most likely would not opt for something inferior; its value was limited.
The most useful item was a piece of silvery-white material.
[Dark Silver, also known as Mithril, when added to objects, greatly increases their affinity for Idealistic elements. (Rare Level·Natural Oddity)]
"The opposite ability of Black Iron..."
"Affinity" and "isolation" both have considerable uses in the forging of extraordinary items.