NWA 6704 is a highly unusual Ungrouped Achondrite purchased in 2011 after being found in Algeria. It is recognised for its distinctive chemistry, igneous texture, and lack of a clear match to any established meteorite group. Sometimes described informally as a possible ‘Carbonaceous Achondrite’, NWA 6704 appears to represent material from a parent body that experienced partial differentiation while retaining some primitive chemical characteristics. Its official classification remains Achondrite, ungrouped. (lpi.usra.edu)

NWA 6704 specimens are visually distinctive, often showing yellowish-green to greenish mineral tones and a crystalline texture dominated by orthopyroxene, with olivine, chromite, albite, and rare metal-bearing phases also reported. Some material contains small metal flecks and unusual internal features, giving prepared fragments a character quite unlike more familiar Achondrites. Its mineral chemistry and oxygen isotopes distinguish it from established groups while showing some affinity with Acapulcoite-Lodranite material. (meteoritestudies.com)

Studying NWA 6704 provides valuable insight into early parent bodies that do not fit neatly into existing meteorite classifications. Its unusual composition suggests complex processes involving igneous crystallisation, partial differentiation, and preservation of primitive signatures. For collectors, NWA 6704 offers a rare and visually distinctive Ungrouped Achondrite with strong scientific importance. Each specimen represents material from a unique or poorly understood parent body from the early solar system.