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| Erg Chech 003 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Erg Chech 003 This is an OFFICIAL meteorite name. Abbreviation: EC 003 Observed fall: No Year found: 2021 Country: Algeria Mass:  1100 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 188 approved meteorites classified as CR2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 17 Oct 2021 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Erg Chech 003 (EC 003) 26°01.92’N, 1°36.66’W Adrar, Algeria Find: 2021 Classification: Carbonaceous chondrite (CR2) History: Found in 2021 by Ali Mustapha near the town of In Zghmir. Later purchased in 2021 by Shun-Chung Yang. Physical characteristics: Sample contains visible fusion crust. A slice taken of the sample reveals an assortment of chondrules and metal grains. Petrography: (D. Sheikh, Cascadia) This sample is composed of chondrules (Primarily porphyritic Type I, Av. 1.3 mm, up to 2.5 mm, ~70 vol. %) set within a fine-grained, hydrous matrix (~30 vol. %). Metal occurs either as blobs within chondrules or as rims around chondrules. Geochemistry: Type I Olivine (Fa1.7±0.4, range Fa1.0-2.3, n=21), Type II Olivine (Fa38.2, n=1), Low-Ca Pyroxene (Fs3.0±1.4Wo0.8±0.2, range Fs1.3-6.8Wo0.5-1.3, n=11). Average EPMA analytical totals in the matrix 81.9 wt. % (n=10). Classification: Carbonaceous chondrite (CR2) based on texture, mineral compositions and low matrix analytical totals. Specimens: 20.03 g at NHMLAC; main mass with Shun-Chung Yang and Juan Chen. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
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| Institutions 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) NHMLAC: Natural History Museum of Los Angeles County 900 Exposition Blvd., Los Angeles, CA 90007 , United States; Website (institutional address; updated 17 Jul 2021) |
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| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:
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Statistics: This is 1 of 195 approved meteorites from Adrar, Algeria (plus 1 unapproved name) This is 1 of 1315 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||||||||||
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