Name: Miller Range 11201 This is an OFFICIAL meteorite name. Abbreviation: MIL 11201 Observed fall: No Year found: 2011 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 30.1 g
Macroscopic Description - Kathleen McBride and Cecilia Satterwhite
The exterior surfaces have black patches of fusion crust that are glassy in some areas. The interior matrices are crème/tan colored with crystalline faces. Some yellow oxidation is present. These diogenites have a medium to coarse grained texture.
Thin Section Description (,2) - Cari Corrigan and Andrew Beck
The sections show a groundmass of coarse (up to 1.5 mm) comminuted pyroxene, with minor plagioclase, euhedral chromites (30 microns). Pyroxene compositions are Fs30-48Wo1-4and plagioclase is An87-92Or1. The Fe/Mn ratio of the pyroxene is ~28-29. These meteorites exhibit numerous shock features (including pockets of glass). MIL 11197 is less fragmented and the overall grain size is slightly larger, including a large (~2x4 mm) chromite grain. These are brecciated diogenites. They are similar enough to suggest pairing with the MIL 090112 group of brecciated diogenites described in the Fall 2012 newsletter.
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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