GEOL332 (Liberal Arts) Optical Mineralogy 3 hrs. 2 crs. Optical properties of minerals. Use of the petrographic microscope. Preparation of rock and mineral thin sections. Identification of common rock forming minerals in thin section and as crushed grains. A field trip is required. Preq: GEOL 225. Coreq: CHEM 101. 1 hr lecture, 2 hr laboratory.