Northwest Africa 8725 (NWA 8725) (Northwest Africa) Classification: Carbonaceous chondrite (CR2) Physical characteristics: Single stone. Shiny black, irregular weathered exterior with some CAIs visible. A saw cut reveals many distinct chondrules (850±500 μm, n=17) and scattered small CAIs set in a brown matrix. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous porphyritic chondrules, many mantled by, or including, Fe-Ni metal blebs or grains which make up ~10% of this meteorite; AOA’s present, ~40% fine-grained matrix with phyllosilicates, FeNi-sulfide and troilite detected. Geochemistry: (C. Agee and N. Muttik, UNM) Ferroan chondrule olivine Fa9.4±15.4, n=27, Fe/Mn=51±29, Cr2O3=0.19±0.09, n=23; Forsteritic chondrule olivine Fa0.9±0.5, Cr2O3=0.28±0.19, n=4; enstatite Fs2.0±0.7Wo2.0±3.2, n=16; aluminous diopside Fs1.6±0.5Wo35.5±6.9, n=8. Classification: Carbonaceous chondrite (CR2). Moderately weathered, low shock stage. As members of the IMCA (International Association of Meteorite Collectors), we guarantee the authenticity of all our pieces.