Name: Graves Nunataks 98030 This is an OFFICIAL meteorite name. Abbreviation: GRA 98030 Observed fall: No Year found: 1998 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 32.6 g
Macroscopic Description: Kathleen McBride
Dark brown/black fusion crust covers approximately 40% of the surface of the
meteorite. The interior reveals a tan weathering rind. The matrix is gray
with black, white, and yellowish colored inclusions, angular to sub-angular in
shape. The rock is soft and powdery.
Thin Section (, 2) Description: Tim McCoy
The section shows a groundmass of comminuted pyroxene and plagioclase (up to 0.5
mm) with fine- to coarse-grained basaltic clasts ranging up to 5 mm. Most of the pyroxene is orthopyroxene with compositions ranging from Fs21-52
Wo1-4 (most Fs20-30), a single augite of Fs19Wo
41 and an olivine of Fa12. The meteorite is a howardite.
32.6 g
