Macroscopic Description: Kathleen McBride
Slightly shiny, striated fusion crust covers approximately 25% of the exterior. The interior reveals a dark crystalline matrix with some rusty haloes and light colored inclusions.

Thin Section (, 2) Description: Tim McCoy, Gretchen Benedix, and Linda Welzenbach
During preparation of this thin section, a large (~2 mm) patch of carbonado was encountered and it remains in the potted butt. The section consists entirely of pigeonite grains up to 2 mm across. Feathery graphite is found in aggregates between the pyroxene grains. The pyroxenes exhibit undulatory extinction. Pigeonite compositions are equilibrated with Fs₁₁Wo₅. No olivine or subcalcic augite grains were found. The mineralogy and mineral compositions are consistent with classification as a ureilite, although no ureilites composed entirely of pigeonite are known (Mittlefehldt et al., 1998). The meteorite is an anomalous ureilite.

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