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Erg Chech 009 | |||||||||||||||||||||||||||||||||||
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Basic information | Name: Erg Chech 009 This is an OFFICIAL meteorite name. Abbreviation: EC 009 Observed fall: No Year found: 2022 Country: Algeria Mass: 10.6 kg | ||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 279 approved meteorites classified as Eucrite-mmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||||||
Comments: | Approved 23 Jul 2022 | ||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Erg Chech 009 (EC 009) 26.010°N, 1.938°W Adrar, Algeria Purchased: 2022 Feb Classification: HED achondrite (Eucrite, monomict) History: Found in Algeria and purchased by Ziyao Wang in early 2022 from a dealer in Laayoune, Morocco. The main mass was then purchased in China by Hui Jin and Jiachang Yu in February 2022. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed mainly of equant mineral grains (mean grainsize ~0.25 mm) related to a microgabbroic eucrite lithology together with sparse related polymineralic lithic clasts. Major minerals are exsolved pigeonite and calcic plagioclase accompanied by accessory silica polymorph, ilmenite (with zircon inclusions), low-Ti chromite (intergrown with ilmenite) and troilite. No Fe metal was observed. Geochemistry: Low-Ca pyroxene hosts (Fs60.8-61.4Wo2.6-1.6, FeO/MnO = 33, N = 4), augite exsolution lamellae (Fs26.9-27.5Wo44.5-43.3, FeO/MnO = 33-35, N = 3), plagioclase (An75.2-93.9Or3.2-0.2, N = 4). Classification: Eucrite (monomict microgabbroic breccia). Specimens: 79.4 g including a polished endcut at UWB; remainder with Mr. Hui Jin and Mr. Jiachang Yu. | ||||||||||||||||||||||||||||||||||
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) |
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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 200 approved meteorites from Adrar, Algeria (plus 1 unapproved name) This is 1 of 1344 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||||||
Proximity search: | |||||||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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