I believe they are called Geologists.
Sedimentologists.
Sedimentologists.
rockmantoligost
Geologists
Geologists.
The people that study ruins are archaeologist.
Geologists are people who study rocks and minerals.
People who study pathology are called pathologists.
People who study psychology are called psychologists.
Geologists. They study solid Earth, the rocks of which it is composed, and the processes by which they change.
They study rocks, animals and bird life.
People (geologists) have organized rocks and minerals into categories to better study them and compare their properties. The rocks themselves do not care about organization.