List of rock types 43.0

The following overview outlines the various rock types as recognized by petrologists. It is important to note that there is no universally accepted count of specific rock types, as any distinct combination of chemical composition, mineralogy, grain size, texture, or other defining characteristics can delineate a rock type.

Furthermore, numerous classification systems are employed for each major rock category. Generally, rocks are classified into three primary types: sedimentary, metamorphic, and igneous. These categories are distinguished by factors such as texture, streak, and geological setting.