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Laboratory spectroscopic detection of hydration in pristine lunar regolith

Izawa, Matthew R. M.; Cloutis, Edward A.; Applin, Daniel M. +3 more

Reflectance spectroscopy of Apollo lunar soil samples curated in an air- and water-free, sealed environment since recovery and return to Earth has been carried out under water-, oxygen-, CO₂- and organic-controlled conditions. Spectra of these pristine samples contain features near 3 µm wavelength similar to those observed from th…