Sample No.: EET87517

Location: Elephant Moraine

Weight (g): 272.6

Field No.: 2149

Dimensions (cm): 7 x 4.5 x 4

Meteorite Type: Ureilite

Macroscopic Description: Roberta Score

This ureilite fragment has both shiny and dull fusion crust. Flow marks are visible on some of the shiny fusion crust and some of the dull fusion crust is frothy and pitted. Areas devoid of fusion crust are crystalline and black and green in color. Oxidation is moderate to heavy. The interior is heavily oxidized. Green and black platy minerals are surrounded by oxidized matrix. The meteorite is extremely coherent.

Thin Section (,6) Description: Brian Mason

The section shows a close-packed aggregate of subhedral to anhedral grains (0.3-1.8 mm) of olivine and pyroxene in subequal amounts. Some pyroxene grains show very narrow exsolution lamellae, presumably augite. Individual grains have thin rims of black matrix. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses give the following compositions: olivine, Fa8, pyroxene, Wo5Fs8. The meteorite is a ureilite and is relatively unshocked.