It was a quick all around appraisal on the one piece of metal scrap that Walker picked up first.
' Mana saturated metal
This metal was a piece of iron alloy that was high in wind elemental mana and was able to transfer that wind mana to the wind elemental mana runes after being deflected. Due to an imbalance in the mana and a breakdown of the ruen formation, the mana was constantly transferred in to this piece of metal.
This caused the metal to break apart and the ambient earth mana within the alloy to be forced out. Now it has a high amount of wind mana within it that causes it to naturally attract wind mana while also bleeding out wind mana that is abrasive to other metals and runes nearby.
The best method of disposal is to heat it beyond melting and cause it to lose the majority of properties which make it usable.