Decayed Crystal in Monster Hunter World (MHW) Iceborne is a Master Rank Material. These useful parts are gathered and collected by Hunters in order to improve their Equipment and performance out in the field.
Ore obtained in the Guiding Lands' forest region. Subterranean energy has caused the ore to crystallize.
How to get Decayed Crystal
This material can be obtained in Master Rank only and by the following means:
Quests that reward Decayed Crystal??
Monsters that drop Decayed Crystal
Decayed Crystal Usage
This material is used for the following Equipment:
Weapons that use Decayed Crystal
Armor that use Decayed Crystal
Charms that use Decayed Crystal