Name: Miller Range 15058 This is an OFFICIAL meteorite name. Abbreviation: MIL 15058 Observed fall: No Year found: 2015 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 99.9 g
Exterior of this meteorite is mottled red-brown and dark brown-black with iridescent oxidation spots and extensive fracturing. There are a few spots of possible fusion crust that are rough and black. Fresh interior is very crumbly gray-brown matrix with reflective mineral inclusions and extensive red-orange weathering throughout.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy
The section consists of mineral fragments of pyroxene, feldspar and SiO2 grains in a matrix with abundant metal and sulfide. Metal occurs as stringers that reach 2 mm in maximum dimension and also as blebs. One area of the section is notably rich in sulfide and poor in FeNi metal. Pyroxene compositions are Fs37Wo3 and Fs27Wo42. Feldspars are An90-94Or0.2. Fe/Mn is ~29. The meteorite is likely a clast from a mesosiderite. Pairing with MIL 13174 should be considered.
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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