Asteroids: Distributions, morphologies, origins and evolution

ISOPHOT Polarization Measurements of the Asteroids (6) Hebe and (9) Metis at 25 μm

“…Zellner (1979) characterizes the mineralogy of S-type asteroids with silicate and metal rich materials and albedos between 0.065 and 0.23. Lagerkvist and Barucci (1992) describe the composition of S-class asteroids as "metal ± olivine, ±pyroxene," meaning that they are composed of olivines, pyroxenes, and metals in various percentages. The asteroids of this type could therefore be the parent bodies of the stony iron and ordinary chondrite meteorites.…”