Name: Dominion Range 18269 This is an OFFICIAL meteorite name. Abbreviation: DOM 18269 Observed fall: No Year found: 2018 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 99.2 g
Macroscopic Description - Cari Corrigan, Tim McCoy
The meteorite is roughly equidimensional in plan view and flattened in the third dimension. A convex surface is separated from a concave surface by an indistinct lip, possibly suggesting flight orientation. The entire surface is brown, lightly weathered, pitted, and grooved, with pits reaching a few millimeters in maximum dimension.
Thin Section Description (,,2) - 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 grain structure. No fusion crust is observed on the section although α2 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 concentration determined from two perpendicular longitudinal traverses is 7.4 wt.% Ni. The meteorite contains less than 0.28 wt.% P. The meteorite is likely an ungrouped iron and pairing with the ungrouped iron DOM 18173 is suggested.
Antarctic Meteorite Images for Sample DOM 18269
Field Photo(s) :
Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah
Antarctic Meteorite Images for Sample DOM 18269
Lab Photo(s) :
Antarctic Meteorite Images for Sample DOM 18269
Thin Section Photo(s) :
Data from: MB112 Table 0 Line 0:
Date:
2018
Latitude:
-85.6515
Longitude:
167.1750
Mass (g):
99.17
Pieces:
1
Class:
Iron, ungrouped
Magnetic suscept.:
5.38
Classifier:
SI
Type spec mass (g):
99.17
Type spec location:
JSC
Main mass:
JSC
Finder:
ANSMET
Comments:
Submitted by AMN
Institutions and collections
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)
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):
99.2 g
