Igneous and metamorphic rock composition, classification, rock-forming processes. Description and interpretation of thin-sections. Course Information: 3 undergraduate hours. 4 graduate hours. Prerequisite(s): EAES 320; and CHEM 114 or CHEM 124 and CHEM 125; or consent of the instructor. Class Schedule Information: To be properly registered, students must enroll in one Laboratory and one Lecture.