Ordinary chondrites with a high content of free Ni-Fe metal (15-19 vol. %) and attracted easily to a magnet. Their main minerals are olivine (Fa16-20) and the orthopyroxene bronzite (Fs14.5-18.5), earning them their older name of bronzite chondrites. Chondrules average ~0.3 mm in diameter. Comparison of the reflectance spectra of the H chondrites to the spectra of several main belt asteroids has yielded a probable parent body in the asteroid 6 Hebe. However,
Hebe might not be the direct source of the H chondrites; most likely, Hebe collided with another asteroid at some point in its history and larger parts of it were dislodged into an elliptical near-earth orbit, from which fragments eventually came to Earth.
Some or all content above used with permission from J. H. Wittke.
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