Name: Miller Range 11292 This is an OFFICIAL meteorite name. Abbreviation: MIL 11292 Observed fall: No Year found: 2011 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 40.3 g
The exterior is covered with black fusion crust that has a glassy appearance in some areas. Areas without fusion crust are a white and gray matrix with small darker grains and evaporites visible. The mottled gray/white matrix has tiny dark gray, black and white mineral grains. Some oxidation is present.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy and Nicole Lunning
This meteorite is dominated by one large coarse-grained eucritic clast (4 mm x 9 mm) that makes up approximately 80% of the section. In this clast, tabular pyroxene grains range up to 4 mm, while plagioclase is more lathe-like, and ~200 microns in size. Small breccia veins with high concentrations of metal, sulfide and eucritic fragments are seen elsewhere in the section. Mineral compositions are homogeneous with orthopyroxene (Fs62Wo2), with lamellae of augite (Fs28Wo36), and plagioclase (An87-89Or1). The Fe/Mn ratio of the pyroxene is ~27-32. This meteorite is a brecciated 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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40.3 g
