NWA 13948 - Acapulcoite (Primitive Achondrite)

NWA 13948 is a rare Acapulcoite, a type of Primitive Achondrite linked to the Acapulcoite-Lodranite family. Acapulcoites represent transitional material that experienced heating, recrystallisation, and limited partial melting on an early asteroid parent body, without becoming fully differentiated. NWA 13948 is especially scarce, with a very low total known weight of around 104 to 108 g, making available material limited and desirable.

NWA 13948 specimens show the fine-grained character typical of Acapulcoites, with silicate minerals such as olivine and pyroxene, alongside metal and sulfide phases. Unlike Ordinary Chondrites, Acapulcoites generally lack obvious chondrules, though they retain a broadly primitive chemical character. Prepared pieces can show a subtle granular texture, sometimes with small reflective metal flecks, giving the material a distinctive appearance within Primitive Achondrites.

Studying NWA 13948 provides valuable insight into the transition between Chondritic material and more evolved Achondrites. Its rarity, transitional nature, and limited availability make it especially appealing for collections focused on Primitive Achondrites, rare meteorite groups, or early asteroid evolution. Each specimen represents ancient solar system material preserving an intermediate stage between primitive and differentiated meteorites.