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| Northwest Africa 13875 | |||||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 13875 This is an OFFICIAL meteorite name. Abbreviation: NWA 13875 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass:  1933 g | ||||||||||||||||||||||||||||||||
| Classification history: |
This is the only approved meteorite classified as LL(L)5. Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||
| Comments: | Approved 10 Apr 2021 | ||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Northwest Africa 13875 (NWA 13875) (Northwest Africa) Purchased: 2021 Mar Classification: LL(L)5 History: The meteorite was purchased from a dealer in Morocco. Physical characteristics: Grayish rock partly covered with fusion crust. Petrography: The meteorite shows a light grayish interior and is a brecciated ordinary chondrite with large, still mostly discernable chondrules (apparent mean diameter about 1 mm). The plagioclase grain size is about 60 µm. Some metal and sulfides are present in the matrix. Contains shock melt veins. Geochemistry: The composition of olivine Fa26.3±0.1 (n=4) and orthopyroxene Fs21.9±0.1 (n=4)Wo1.7±0.1 (n=4) are at the limit between that of L and LL groups. Classification: Ordinary chondrite LL(L)5. LL group is favored based on magnetic susceptibility, but the mineral composition is somewhat intermediate between L and LL groups, hence the LL(L) classification. | ||||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
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| Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) Polandmet: targoniny 30 43445 Dziegielow Poland, Poland; Website (institutional address; updated 7 May 2021) |
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| Catalogs: |
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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: |
Statistics: This is 1 of 9933 approved meteorites from (Northwest Africa) (plus 1837 unapproved names) | ||||||||||||||||||||||||||||||||