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El Milhas 001 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: El Milhas 001 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2022 Country: Mauritania Mass: 385 g | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 334 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 6 Aug 2022 | ||||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
El Milhas 001 25.684°N, 7.173°W Tiris Zemmour, Mauritania Find: 2022 Apr Classification: Lunar meteorite (feldspathic breccia) History: Two similar-appearing stones were found together in Mauritania in April 2022 at 25.684°N, 7.173°W and were subsequently purchased by Jason Phillips and James Tobin from a Mauritanian dealer in May 2022. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of mineral clasts of anorthite, olivine (with a wide compositional range), low-Ca pyroxene, unexsolved pigeonite, exsolved pigeonite and augite, together with some troctolitic lithic clasts, in a fine grained matrix containing taenite, pentlandite and troilite. The troctolitic clasts are composed predominantly of Mg-rich olivine and anorthite in distinct monomineralic layers. Geochemistry: Anorthite (An96.3-97.6Or0.0, N = 3), olivine (Fa12.2-54.9, FeO/MnO = 94-99, N = 4), low-Ca pyroxene (Fs10.2-10.3Wo4.4-4.8, FeO/MnO = 52-57, N = 2), pigeonite (Fs23.1-23.9Wo10.7-7.9, FeO/MnO = 56-60, N = 2), augite exsolution lamellae (Fs5.3-5.4Wo43.1-43.0, FeO/MnO = 31-38, N = 2), pigeonite exsolution lamella (Fs11.6Wo7.0, FeO/MnO = 59), augite (Fs10.2Wo42.3, FeO/MnO = 39; Fs21.7Wo37.6, FeO/MnO = 61; N = 2). Classification: Lunar (feldspathic breccia). Specimens: 24.8 g in the form of a polished endcut at UWB; remainder held jointly by Mr. J. Phillips and Mr. J. Tobin. | ||||||||||||||||||||||||||||||||||||
Data from: MB111 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) Tobin: J. Tobin, The Meteorite Exchange, PMB #455, P.O. Box 7000, Redondo Beach, CA 90277, United States (private address) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: |
Statistics: This is 1 of 28 approved meteorites from Tiris Zemmour, Mauritania (plus 1 impact crater) This is 1 of 217 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters) | ||||||||||||||||||||||||||||||||||||
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Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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