Iridium Crystal
How to Get Iridium Crystal
Iridium Crystals can be obtained from the Monster Bus and in Settlements in Chalk Peak in Once Human. Find out how to get Iridium Crystal, and how to use Iridium Crystal in this guide!

How to Get Iridium Crystal
Loot From the Settlements in the Chalk Peak Region

Iridium Crystals can be found in areas between level 31 and level 40, making Chalk Peak the best region to look for them. They are found in settlements like Holt Town or in minor points of interest like Paisley Plaza.
Due to the size of the area, searching for them in settlements would give the player more opportunities to loot Iridium Crystals.

Storage Crates and Gear Cases

Iridium Crystals can usually be found in the inside of storage crates and gear cases. Loot will spawn every 4 hours from 21:00 PDT, allowing previously looted areas to become lootable again.
Obtain from Wanderer

Iridium crystals can also be obtained from the wanderer that sprawls across the Chalk Peak region. Simply damage its legs and climb onto its back once it's staggered to access the crate inside.
Note that you can only loot from the Wanderer once a day, so make sure the Wanderer is in the Chalk Peak region to get Iridium Crystals.
How To Use Iridium Crystal
Crafting Material for Tier IV Equipment

Iridium Crystal is typically used for the production of Tier IV Weapons and Armor. Tier IV weapons require approximately 3-4 Iridium Crystals depending on their rarity, while Tier IV armor always requires 3 Iridium Crystals per piece.