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| Aridal 020 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Aridal 020 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2022 Country: Western Sahara Mass:  157.1 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 336 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 11 Feb 2023 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 112:
Aridal 020 25.691°N, 13.490°W Rio de Oro, Western Sahara Purchased: 2022 Nov Classification: Lunar meteorite (feldspathic breccia) History: Found in southern Morocco and purchased by Ziyao Wang in November 2022 from a dealer in Ouarzazate, Morocco. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of fairly closely-packed mineral clasts of anorthite, olivine, low-Ca pyroxene, pigeonite, subcalcic augite and augite in a sparse fine-grained matrix containing medium-Ti chromite, ilmenite, kamacite, minor schreibersite (as composite grains with kamacite) and rare silica polymorph. Secondary terrestrial phases are barite and a fibrous chlorite-like phyllosilicate phase with low oxide sums and elevated FeO/MnO ratios replacing some primary olivine. Geochemistry: Olivine (Fa37.2-43.3, FeO/MnO = 91-96, N = 3), low-Ca pyroxene (Fs18.9Wo3.0, FeO/MnO = 51), pigeonite (Fs22.9-29.7Wo6.2-8.4, FeO/MnO = 50-54, N = 2), subcalcic augite (Fs17.8Wo25.6, FeO/MnO = 39), augite (Fs8.8Wo44.1, FeO/MnO = 34), anorthite (An93.6-97.2Or0.2-0.0, N = 3). Classification: Lunar (feldspathic breccia). Specimens: 21.1 g including a polished slice at UWB; remainder with WangZ. | ||||||||||||||||||||||||||||||||||||
| Data from: MB112 Table 0 Line 0: |
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| Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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| Photos: |
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Geography:
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Statistics: This is 1 of 50 approved meteorites from Rio de Oro, Western Sahara This is 1 of 280 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||||||||||||||||||
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| Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
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| Revision history: |
This lists important revisions made to data for this record.
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