Mineralogy: Uncovering the Secrets of Earth’s Hidden Gems Geology is the study of the Earth and its processes, from the formation of mountains to the movement of tectonic plates. But within the vast field of geology, there are several specialized subfields that focus on specific aspects of our planet. One such subfield is mineralogy, the study of minerals and their properties. Mineralogy is a crucial aspect of geology, as minerals play a significant role in shaping our planet and our daily lives.