Aubres vs Alais

Aubres is an aubrite meteorite that fell near Nyons in southeastern France in 1836. It gave its name to the aubrites, a class of enstatite-rich achondrites formed under unusually oxygen-poor conditions and distinguished by their pale, magnesium-rich silicate material. As the type specimen for the group, Aubres is a reference point for classifying meteorites associated with a highly reduced, differ...

Alais is a CI1 carbonaceous chondrite that fell near Alais, now called Ales, in southern France in 1806. CI meteorites are chemically primitive, rich in hydrated minerals, and notable for elemental compositions that closely resemble the nonvolatile composition of the Sun, although their original textures have been heavily altered by water. Claims made during the twentieth century that Alais contai...