Name: Grosvenor Mountains 95602 This is an OFFICIAL meteorite name. Abbreviation: GRO 95602 Observed fall: No Year found: 1995 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 51.5 g
Macroscopic Description: Cecilia E. Satterwhite The exterior of this achondrite is covered with black fusion crust. The fusion crust is shiny on some surfaces, dull on others. A large black clast (1.2 cm) is present on the exterior. Smaller clasts are visible (0.5 cm). Areas devoid of fusion crust are gray with light and dark inclusions. Chipping revealed a fine grained gray interior, with abundant light and dark inclusions, ranging in size from 1 to 3 mm. Minor oxidation is visible in some areas.
Thin Section (,3) Description: Brian Mason The section shows a groundmass of comminuted pyroxene and plagioclase (grains up to 0.3 mm) with a few larger plagioclase clasts (up to 2 mm). Microprobe analyses show that most of the pyroxene is hypersthene (Wo1-5, Fs22-36); one grain of augite, Wo42Fs32, was analyzed, and several grains of intermediate composition. Plagioclase composition is An86-91. One grain of olivine, Fa25, and one of an SiO2 polymorph were analyzed. The meteorite is a howardite, very similar to GRO95534, and 95535, and 95581, with which it is probably paired.