Name: Graves Nunataks 98005 This is an OFFICIAL meteorite name. Abbreviation: GRA 98005 Observed fall: No Year found: 1998 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 203 g
Macroscopic Description: Kathleen McBride
The exterior of this carbonaceous chondrite is dull and black with white evaporites along the edges. The top face has a large yellowish brown inclusion. The meteorite appears to have no fusion crust. The interior is brown, very weathered and crumbles easily. Evaporite deposits are present on the interior surface.
Thin Section (,6) Description: Tim McCoy
The section consists of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-4, orthopyroxene is Fs1-2. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a C2 chondrite.