Northwest Africa 4040 (NWA 4040) was found during 2004 in the Occidental Saharan Desert, Africa as a single complete stone weighing 1226g. NWA 4040 has been classified as a Brecciated L3 Chondrite, with a Shock Rating of S2 and a Weathering Level of W2. The most obvious and notable feature of NWA 4040 is the large pale or 'bright' inclusion which the classification states is a "brecciated intergrowth of compositionally zoned olivine and low-Ca pyroxene. Si,Al-rich glass occurs in the interstitials and frequently contains sulfide spherules". The pale inclusion in the specimen below measures 38mm x 28mm at widest points. The classification also makes mention of dark inclusions which are described as being "composed of small unhedral often skeleton-like shaped olivine displaying a compositional zoning from a Mg-rich core to a more Fe-rich rim embedded into a mostly glassy groundmass containing small dendritic olivine and pyroxene and sulfide spherules".  This specimen is part of the Meteorites Australia Collection (MA.06.0009).