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| Northwest Africa 14688 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14688 This is an OFFICIAL meteorite name. Abbreviation: NWA 14688 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass:  1613 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 3299 approved meteorites (plus 1 unapproved name) classified as LL5. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
| Comments: | Approved 21 Feb 2022 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 111:
Northwest Africa 14688 (NWA 14688) (Northwest Africa) Purchased: 2021 Nov Classification: Ordinary chondrite (LL5) History: According to the owner these stones were found in October 2021 by a group of Saharawi meteorite hunters about 100 km NW of Taoudenni, Mali. Petrography: (K. Metzler, IfP) Brecciated ordinary chondrite, consisting of dark mm- to cm-sized chondritic clasts, embedded in a yellowish matrix of fine-grained related debris. The clasts show a recrystallized texture with barely visible chondrules of various textural types. Secondary feldspar grains are mostly <50 µm. Accessory phases are Fe-Ni metal (mostly terrestrially altered) and troilite, mostly residing outside of chondrules. Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa30.2±0.4 (Fa29.8-30.9; n=12) and the mean low-Ca pyroxene composition is Fs24.4±0.3 Wo1.5±0.3 (Fs24.0-24.8Wo1.1-2.0; n=12). Classification: LL chondrite based on mineral chemistry. Petrologic type 5, based on the equilibrated state of olivine and pyroxene and grain size of secondary plagioclase. Specimens: The largest stone has a weight of 354 g. | ||||||||||||||||||||||||||||||
| Data from: MB111 Table 0 Line 0: |
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| Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) |
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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 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||
| 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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