NWA 6868, Crystallized Brecciated LL6 Chondrite, Micromount

$5.00

NWA 6868 is an odd meteorite that was recovered out of Morocco 2011 and was analysed at UWS by Dr. Tony Irving. This meteorite is highly-crystallized with almost no chondrules and sparse crystals and brecciated clasts. At first glance, it looks like an oxide-stained diogenite, but it is not. Analysis revealed it to be an LL6 chondrite with rare relict chondrules and some metal flecks. This meteorite is mildly shocked (S2) and mildly weathered (W2). It has a low-TKW of only 747g before classification.

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 for NWA 6868 :

Northwest Africa 6868 (NWA 6868)

Northwest Africa

Purchased: 2011 Apr

Classification: Ordinary chondrite (LL6)

Petrography: Breccia composed of recrystallized, mostly poikiloblastic clasts containing rare relict chondrule fragments in a matrix of related debris. Constituent minerals are olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, troilite and altered kamacite.

Geochemistry: Olivine Fa30.4-30.5, orthopyroxene Fs25.3-25.6Wo2.7-3.1, clinopyroxene Fs12.5-13.2Wo40.5-39.8.