This chapter of the Deep Rock Galactic guide has all the information about the Croppa mineral - where to find it, how to identify, and what it can be used for.
Croppa is one of the minerals found in Deep Rock Galactic. Croppa ores are very distinctive thanks to their green color and purple sharply pointed ridges. Croppa usually occurs near other raw materials such as Gold, Nitra, or Morkite.
Croppa is one of the crafting materials used in improving equipment. Croppa is a durable mineral, so you have to hit it twice to rip off a piece of the deposit. It can be found in the Fungus Bogs and Magma Core area.