Recommended classes in the Meteoritical Bulletin Database are assigned by the database editor. In most cases, this is based on the most recent classification that appears in either the Catalogue of Meteorites, MetBase, the US Antarctic Meteorite Newsletter, the Japanese Meteorite Newsletter, or the Meteoritical Bulletin. However, in a few cases it reflects differences of opinion about the proper way to classify the meteorite. The nomenclature used may also be modified by the editor to conform to an internally consistent classification scheme
The recommended classification Aubrite-an means:
"An aubrite with certain anomalous properties."
The highlighted words are defined as follows:
aubrite: Aubrites, named after the Aubres, France, fall of 1836, are enstatite achondrites. Most are breccias (Shallowater being a notable exception) containing igneous and impact-melted clasts. Like enstatite chondrites, aubrites have highly reduced mineralogy, but they probably do not come from the same parent asteroid as either EH or EL chondrites.
anomalous: Designates meteorites that have been determined to be a member of a specific group, but have certain properties that are unusual or distinctive.
Find all meteorites of type: Aubrite-an