Name: Miller Range 090963 This is an OFFICIAL meteorite name. Abbreviation: MIL 090963 Observed fall: No Year found: 2009 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 2.5 g
About 50% of the exterior is covered with rusty brown fusion crust with fractures. The interior is fine grained with a crystalline texture and is rusty black in color. This meteorite is hard and brittle.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy, and Linda Welzenbach
This section consists of an aggregate of equigranular (up to 1 mm) olivine grains. Individual olivine grains are rimmed by dark material containing finely dispersed grains of metal, sulfide, and chromite. Olivine has compositions of Fa28-32. Clinopyroxene analyses are Fs11Wo43. This meteorite looks texturally like a ureilite, but given the recent abstract by Warren and Rubin (2012, LPSC 43, #2528) about MIL 090340 (which was originally classified as a ferroan ureilite but has detailed mineral compositions that are distinct from ureilites), we will classify it as an ungrouped achondrite. Further studies are warranted to examine pairing relationship with MIL 090340.
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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