Fluorine as a constituent in lunar magmatic gases

Fluorine surface deposits on Apollo 15 green glass, Apollo 17 orange glass, and on vesicle linings from Apollo 15 basalts were studied by a resonant nuclear reaction technique. Surface layers of about 10 to the 15th F atoms/sq cm were observed on unbroken spheroidal glass surfaces, whereas thinner (about 10 to the 14th atoms/sq cm) deposits were found on the vesicle linings.