Aubrites: are they Direct Nebular Condensates?

raditionally, chondrites are regarded as direct condensates from the solar nebula,.whereas achondrites are taken to be igneous differentiates, formed in the meteorite parent bodies from more primitive material. Wasson and Wai (1) have argued, however, that this simple picture may not apply to the enstatite achondrites (aubrites): they appear to form a continuous sequence with the enstatite chondrites, and hence may likewise be nebular condensates.