Name: Dominion Range 18173 This is an OFFICIAL meteorite name. Abbreviation: DOM 18173 Observed fall: No Year found: 2018 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 49.4 g
Macroscopic Description - Cari Corrigan, Tim McCoy
This meteorite has an overall convex shape that bears a striking resemblance to the asteroid Eros. The concave surface is brown, lightly weathered and pitted. The convex surface has two prominent protrusions and is also lightly weathered and moderately pitted. Hints of a lip between the convex and concave surfaces are visible on each of the long surfaces of the mass.
Thin Section Description (,1) - Cari Corrigan, Tim McCoy
The section consists of equant kamacite grains up to 1.5 mm in dimension with interstitial ribbons of taenite and occasional schreibersite. Graphite blebs of a few tens of microns in size form swarms whose occurrence is independent of the kamacite grains structure. No fusion crust is observed on the section although ?2 structure is present along some margins of the meteorite and occasionally along kamacite-kamacite grain boundaries suggestive of an origin by shock. The average Ni concentrations determined from two perpendicular longitudinal traverses is 7 wt. % Ni. The meteorite contains less than 0.1 wt. % P. The meteorite is likely an ungrouped iron, not paired with other DOM irons.
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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