Name: Graves Nunataks 98074 This is an OFFICIAL meteorite name. Abbreviation: GRA 98074 Observed fall: No Year found: 1998 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 51.9 g
Macroscopic Description: Kathleen McBride A rough, purplish fusion crust with polygonal fractures covers 35% of the exterior. This meteorite is very fractured. The interior is very weathered. It has a gray-white appearance due to evaporites. Black matrix, containing white, tan and rusty chondrules. The meteorite is very friable.
Thin Section (, 2) 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. The chondrules are flattened as a result of shock. Olivine compositions are Fa1-34, with most Fa1-2; no orthopyroxene grains are measured. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite and may be paired with GRA98005.