Name: Graves Nunataks 95209 This is an OFFICIAL meteorite name. Abbreviation: GRA 95209 Observed fall: No Year found: 1995 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 949 g
Macroscopic Description: Kathleen McBride
The exterior of this meteorite has a thin, dark brown, melted-appearing
fusion crust. One fracture runs across one surface and evaporite
deposits are visible on the edge of another surface. Chondrules
on the surface appear lighter than the matrix. The interior of
the meteorite is very rusty. This meteorite was very coherent
and had to be pried apart along complete fractures during chipping.
Metal grains are numerous including areas of concentrated metals
and metal sulfides, the largest of this being 1 cm in diameter.
Clasts are present as well including some as large as 1 cm.
Thin Section (,7) Description: Brian Mason
The section shows an equigranular aggregate (grains averaging
0.3 mm) of subequal amounts of nickel-iron, olivine, and pyroxene,
with a little plagioclase. A minor amount of brown limonitic
staining pervades the section. Microprobe analyses give the following
mineral compositions; olivine, Fa7; orthopyroxene,
Wo3Fs7; clinopyroxene, Wo41Fs5
; plagioclase, An19. The meteorite is classified
as a lodranite.