This chapter of the Deep Rock Galactic guide has all the information about the Bismor mineral - where to find it, how to identify and what it can be used for.
Bismor is one of the minerals found in Deep Rock Galactic. It is a very distinctive mineral that looks like a dark yellow cube with red spots. It always grows out of the ground meaning it is easily accessible to any character class.
Bismor is a rare crafting material used in improving equipment. Bismor is a durable mineral so you have to hit it twice to rip off a piece of the deposit. It can be found in Dense Biozone, Salt Pits and Crystalline Caverns.