Fig. 2: Merrillite grain adhered to agglutinic glass.
From: Hydrogen-bearing vesicles in space weathered lunar calcium-phosphates
a, b HAADF image and EDS map of grain adhered to npFe0-rich agglutinitic glass. c HAADF image from box marked in (a) showing the vesicular space weathered rim of the merrillite. The rim of the glass has abundant 1–5 nm npFe0. d Low-loss EELS spectra extracted from vesicles (1-green dashed line; 2-red solid line) and surrounding material (blue solid line). Several vesicles show clear peaks at 13 eV indicative of the presence of H-bearing species in the vesicles. Spectra are normalized to value at 20 eV and offset vertically for clarity. Inset shows spectra without offset. Mer = merrillite.
