Northwest Africa 4025 (NWA 4025) was discovered during 2005 somewhere in the Sahara Desert in the form of 69 pieces with a Total Known Weight of just 745.5g. It has been classified as a very rare Carbonaceous Chondrite, CB3_a with a Shock Rating of S3 and Weathering Level of W3.

Most of the pieces are comprised primarily of metallic Fe/Ni however a very few pieces have intact Pyroxene chondrules/nodules such as the one visible near the top-left side of this specimen. This lightly-etched endcut is part of the Meteorites Australia Collection (MA.05.0098).