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Al 'Aweinat
Basic information Name: Al 'Aweinat
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Sudan
Mass:help 120 g
Recommended:  Lunar (bas. breccia)    [explanation]

This is 1 of 21 approved meteorites classified as Lunar (bas. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 21 Aug 2023
Writeup from MB 112:

Al ’Aweinat        20° 59.1873’ N, 25° 05.9103’ E

Ash Shamaliyah, Sudan

Find: 2021

Classification: Lunar meteorite (basaltic breccia)

History: Found in the desert region near the Libya-Sudan border by a nomad in 2021. Subsequently sold to a meteorite dealer on January 10, 2022, who later sold it to Jared Collins on March 10, 2023.

Physical characteristics: Single stone with minimally weathered dark fusion crust. Yellow-colored clasts are visible within a dark-colored matrix.

Petrography: (D. Sheikh, Cascadia) Sample is a breccia comprised primarily of an abundance of mm-sized basaltic clasts/clast fragments (composed mainly of radiating/tabular laths of plagioclase and zoned ferropigeonite/ferroaugite with accessory silica, ilmenite, and ulvospinel; average grain size ~0.1 mm) set within a dark, fine-grained matrix (containing some melt regions). Minor clast types identified in the host rock include anorthosites, gabbros, and noritic anorthosites, and accessory phases found within the host rock include Fe-Ni metal and troilite.

Geochemistry: Host Rock: [Olivine (Fa41.3±23.7, range Fa22.6-84.6, FeO/MnO=86±10, n=7), Low-Ca Pyroxene (Fs28.2±5.8Wo4.4±0.1, range Fs24.1-32.2Wo4.3-4.5, FeO/MnO=61±1, n=2), Pigeonite (Fs38.0±11.3Wo17.0±5.4, range Fs26.9-53.1Wo9.7-23.1, FeO/MnO=55±9, n=5), Calcic Plagioclase (An93.4±3.5Or0.5±0.3, range An85.6-96.7Or0.1-1.1, n=10)]; Basalt Clasts: [ Pigeonite (Fs49.5±22.7Wo20.4±3.6, range Fs26.1-80.3Wo13.3-24.6, FeO/MnO=59±13, n=10), High-Ca Pyroxene (Fs32.4±21.8Wo31.6±4.0, range Fs19.9-65.0Wo26.7-35.0, FeO/MnO=54±9, n=4), Calcic Plagioclase (An90.9±1.5Or0.8±0.3, range An89.1-94.1Or0.4-1.5, n=11)].

Classification: Lunar (basaltic breccia). Based on pyroxene Mg# vs Ti# plot, basalt clasts compositionally resemble low-Ti mare basalts.

Specimens: 20.3 g at Cascadia, main mass with Jared Collins.

Data from:
  Table 0
  Line 0:
State/Prov/County:Ash Shamaliyah
Origin or pseudonym:Desert region
Latitude:20° 59.1873' N
Longitude:25° 05.9103' E
Mass (g):120
Class:Lunar (bas. breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):41.3±23.7
Ferrosilite (mol%):28.2±5.8, 38.0±11.3; 49.5±22.7, 32.4±21.8
Wollastonite (mol%):4.4±0.1, 17.0±5.4; 20.4±3.6, 31.6±4.0
Classifier:D. Sheikh, Cascadia
Type spec mass (g):20.3
Type spec location:Cascadia
Main mass:Jared Collins
Comments:CML 1627; submitted by Daniel Sheikh
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Public domain photographs:
Daniel Sheikh   

     Recommended::   (20° 59' 11"N, 25° 5' 55"E)

     This is 1 of 2 approved meteorites from Ash Shamaliyah, Sudan
     This is 1 of 12 approved meteorites from Sudan (plus 1 unapproved name)
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