NWA 8471, Possible Bali Group CV3 Chondrite, Micromount

$5.00

NWA 8471 was recovered out of the Saharan Desert in Morocco in 2014. It consisted of a single, sand-blasted stone weighing 314 grams. It was analyzed at UCLA by Dr. Alan Rubin. It was determined that this meteorite has some features consistent with the Bali subgroup of oxidized CV-CK meteorites - chondrule composition, preferred-orientation petrofabric, depleted metal content, and amoeboid olivine inclusions.

Refer to the photo. The black centimeter cube is shown for scale and is not included. You are purchasing a small fragment selected from the larger lot shown. Your purchase will include a labeled gemjar for safe storage.

From the Meteoritical Bulletin entry on NWA 8471 :

Northwest Africa 8471 (NWA 8471)

Morocco
Purchased: 2014 Mar
Classification: Carbonaceous chondrite (CV3)
 
History: Purchased from a dealer in Morocco in March of 2014 by A. Jonikas
Physical characteristics: One stone lacking fusion crust, cut surface reveals closely packed chondrules and CAIs in a dark gray matrix
Petrography: (A. Rubin, UCLA) Microprobe examination of a polished mount shows the rock is an oxidized CV3; it contains abundant magnetite and has little metallic Fe-Ni. It has a preferred orientation petrofabric, suggesting it may be a member of the Bali subgroup. Chondrules are large, averaging 900 μm in diameter. Textural types of chondrules include Type-I porphyritic olivine and olivine-pyroxene and barred olivine. Type-II chondrules are rare. No radial pyroxene chondrules were observed in the thin section. Many of the chondrules are surrounded by igneous rims. The rock contains 5-10 vol.% amoeboid olivine inclusions ranging in length from 0.8 to 5 mm.
 
Classification: Carbonaceous chondrite (CV3).