Characterization and Identification of Mineral Unknowns: A Mineralogy Term Project

It is possible in a single term undergraduate mineralogy course to complete a project involving the characterization and identification of mineral unknowns. These identifications are based on physical properties, unit cell parameters or d-spacings determined from powder X-ray diffraction scans, chemical composition determined on an electron microbeam instrument, and optical properties determined with a petrographic microscope. Each phase of the project is timed to compliment the sequence of concepts covered in mineralogy lecture and lab. Such a project serves to (1) illustrate practical applications of methods discussed in lecture; (2) illustrate the connection between mineralogy and topics covered in ancillary courses such as chemistry and physics; (3) pique the interest of some students for pursuing mineralogic and petrologic research projects later in their careers.