Name: Dominion Range 18244 This is an OFFICIAL meteorite name. Abbreviation: DOM 18244 Observed fall: No Year found: 2018 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 25.1 g
Exterior has a dark brown fusion crust that is rough with light spots less than 1 mm. Approximately 40% fusion crust on the exterior and it is slightly fractured. Exposed interior is dark gray to black with light colored inclusions. The interior is dark gray to black with light brown and white inclusions that are less than 2 mm.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy
These sections are similar enough that one description will suffice. They consist of a highly brecciated assemblage of mostly single mineral grains ranging up to 0.5 mm in size. Grains are dominated by pyroxene and plagioclase (no olivine grains were analyzed in these sections). Polymineralic igneous fragments/clasts include coarse grained gabbro and symplectites. Melt veins and pockets were observed in both sections. Pyroxene is dominantly pigeonite with fine exsolution, with orthopyroxene of Fs30Wo3 and augite Fs20-64Wo20-39. Fe/Mn of pyroxenes ranges from ~50-70. Plagioclase is calcic with An91-99Or0.1-0.3. These meteorites are lunar basaltic breccias, likely regolith breccias and are most certainly paired with DOM 18262 pairing group reported in the Fall 2019 newsletter.
Antarctic Meteorite Images for Sample DOM 18244
Lab Photo(s) :
Antarctic Meteorite Images for Sample DOM 18244
Thin Section Photo(s) :
Data from: MB109 Table 0 Line 0:
Date:
2018
Latitude:
-85.656
Longitude:
167.251
Mass (g):
25.065
Pieces:
1
Class:
Lunar (bas. breccia)
Weathering grade:
A/B
Ferrosilite (mol%):
20-64
Magnetic suscept.:
4.2
Classifier:
SI
Type spec mass (g):
25.065
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.):
25.1 g
