Name: Grosvenor Mountains 17168 This is an OFFICIAL meteorite name. Abbreviation: GRO 17168 Observed fall: No Year found: 2017 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 133.9 g
The exterior is 85% covered by black, glassy fusion crust. The exposed surface has a gray matrix with tan and white clasts (up to 2 mm in size). Some of the clasts have minor rust around them. The fresh interior is a light gray matrix with abundant beige clasts that are up to 5 mm in size. There are some white inclusions present.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy
The meteorite is dominated by fine-grained (~200 micron average grain size) basaltic material which occurs as both the host and clasts within the meteorite. Clasts up to 0.5 mm exhibit acicular to equigranular textures. Mineral compositions are homogeneous with orthopyroxene (Fs64Wo2), with lamellae of augite (Fs28Wo43), and plagioclase (An64Or0.5). The Fe/Mn ratio of the pyroxene is ~32. The meteorite is a polymict eucrite.
JSC: Mailcode XI, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 28 Jul 2022) SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
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133.9 g
