Antarctic Search for Meteorites (ANSMET) Search this
Place:
Antarctica
Collection Date:
1988
Notes:
# NASA data for LEW 88281 Weathering: B Fracturing: A Pairing: LEW 85440 Fa: 9 mol % Fs: 8 mol %
Some thin polished fusion crust remains on the exterior of this ureilite. The interior is bluish-black in color, crystal faces are easily noticed and oxidation is moderate.
The section shows an equigranular aggregate of olivine and pyroxene, as rounded to subhedral grains 0.3-0.6 mm across. The grains are rimmed with black carbonaceous material, which contains trace amounts of nickel-iron (largely weathered to brown limonite) and troilite. Microprobe analyses give the following compositions: olivine, Fa₉; pyroxene, Wo₅Fs₈. The meteorite is a ureilite; it is very similar in texture and mineral compositions to LEW 85440, 88012, and 88201, with which it is probably paired.
