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Nominally anhydrous minerals (NAMs) such as plagioclase, pyroxene, and olivine can contain small amounts of water and other volatile elements, typically within crystal lattice defects. Given the volumetric abundance of NAMs, these minerals can contain a significant volatile reservoir despite their low abundances. At least one NAM is present in nearly all lunar rocks, unlike the more commonly studied volatile-bearing mineral apatite, making NAM-based hygrometry more widely applicable. NAMs are also not subject to enrichment in H due to self-fractionation of F, as is the case for apatite. Recent developments in secondary ion mass spectrometry (SIMS) techniques (e.g., the reduction of analytical background) have allowed the evaluation of volatiles in samples that were previously too low in abundance to measure. The ability to make volatile measurements in the sub-10 ppm range opens up a suite of samples where volatile-bearing phases, such as melt inclusions and apatite, are rare or entirely absent. In this study we measure the abundances of H, C, F, P, S, and Cl in plagioclase from two paired lunar troctolites to better understand the volatile inventory of the early lunar crust and its implications for the bulk Moon.