THE PROPOSED ANALYSES HAVE THE POTENTIAL TO BROADEN OUR UNDERSTANDING OF BOTH PRE-AND POST-ERUPTIVE OXIDATIVE AND REDUCTIVE CONDITIONS IN LUNAR IGNEOUS MATERIALS AND THE LUNAR INTERIOR. THEY OVERCOME A LIMITATION OF CURRENT REDOX STUDIES IN LUNAR GLASSES MANY OF WHICH HAVE BEEN STORED IN TERRESTRIAL AIR SUBSEQUENT TO THEIR RETURN TO EARTH. IT IS KNOWN THAT REDOX STATES IN GLASSES CAN BE HIGHLY REACTIVE. THUS TO TRULY UNDERSTAND THE FO2 EVOLUTION OF THE LUNAR INTERIOR IT IS CRITICAL TO COMPARE PRISTINE LUNAR SAMPLES TO PREVIOUSLY-STUDIED ONES THAT HAVE HAD LENGTHY EXPOSURES TO EARTH S OXYGEN-RICH ATMOSPHERE.