Name: Grosvenor Mountains 17175 This is an OFFICIAL meteorite name. Abbreviation: GRO 17175 Observed fall: No Year found: 2017 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 94.9 g
The exterior is 25% covered in black, patchy fusion crust. The exposed interior has an overall greenish color. The matrix is gray and beige with some white clasts. The surface is heavily pitted with a cave-like structure in the center of the sample. Some green crystals are visible to the naked eye. The fresh interior shows a fine-grained beige, gray and white matrix. Some green crystals are visible.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy
This meteorite consists of small (~200 micron average) fragments of basaltic material which occur as both the host and clasts within the meteorite. Occasional coarser grains and clasts (with sizes up to 0.5 mm) are observed. Mineral compositions are homogeneous with orthopyroxene (Fs30Wo2), with lamellae of augite (Fs12Wo44), and plagioclase (An92Or0.5). The Fe/Mn ratio of the pyroxene is ~29. Orthopyroxene is the dominant modal phase, which makes this meteorite a diogenite.
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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