Mineralogists know that rocks rock the world. They spend some of their time making sure that rocks are classified correctly. Mineralogists can work in the laboratory where they experiment on the uses of minerals. For example, some rare minerals are used in laptop computers. Other mineralogists spend most of their time in the field. They can study what minerals indicate that other minerals will likely be present for the mining industry. They can also study how geological processes affect mineral formation (like volcanoes, earthquakes, and glaciers). Some mineralogists even help us to learn about what the climate was like thousands of years ago when the minerals were forming. Mineralogists earn a bachelor of science degree from a university, and sometimes they earn MS and PhD degrees. They take classes in mineralogy, chemistry, geology, and physical geography.