Macroscopic Description: Carol Schwarz

This specimen is angular in shape and greenish in color. There are several penetrating fractures. The exterior is somewhat polished with no fusion crust. The interior is greenish brown and crystalline with coarse-grained green and dark minerals. (It is coarser than PAT91501 (L7 Chondrite) and ALHA77005 (SNC) and contains no plagioclase.)

Thin Section (,2) Description: Brian Mason and Tim McCoy

The section shows a polygonal-granular aggregate of anhedral orthopyroxene, the grains ranging from 0.3 to 2.4 mm across. Pyroxene composition is essentially uniform, Wo₂Fs_24.. Accessory phases include SiO₂, chromite, an iron sulfide (probably troilite), and weathering products of metal and troilite. The composition is that of a diogenite, but the texture is unique; it shows no sign of the brecciation and shock deformation characteristic of other diogenites.

Aluminum-26 Activity: Dave Lindstrom

The sample was radioassayed for Al-26 because it had not fusion crust and might have been a terrestrial rock. Estimated Al-26 activity of 50±10 dpm/hg is similar to that of diogenites and other achondrites.