Fig. 1From: Miniature lightweight X-ray optics (MiXO) for surface elemental composition mapping of asteroids and comets(Top) Simulated X-ray fluorescence spectrum of an asteroid of C1 chondrite composition at 1 AU during the quiet sun state illustrating diverse elemental composition. (Bottom) Abundance ratios (Mg/Si vs. S/Si) as an identifier of a wide range of meteorite specimen types (Nittler et al. 2004)Back to article page