Physical characteristics: Single stone. A saw cut reveals a breccia dominated by white feldspathic clasts set in a dark-gray groundmass, some desert caliche is present along cracks.
Petrography: (C. Agee, UNM) Microprobe examination shows fragmental breccia of olivine, pyroxene, and plagioclase. Melt veins and vesicles are present throughout. Augite and pigeonite show subparallel iron-enrichment trends. There appears to be only one population of augite and pigeonite pairs suggesting that this is a monomict breccia. Plagioclase is uniform in composition at 98.5±0.2% anorthite. Ubiquitous minor ilmenite, chromite, and Fe-Ni metal were observed.