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| Northwest Africa 14512 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14512 This is an OFFICIAL meteorite name. Abbreviation: NWA 14512 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass:  52.3 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 453 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||
| Comments: | Approved 15 Dec 2021 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Northwest Africa 14512 (NWA 14512) (Northwest Africa) Purchased: 1 April 2021 Classification: HED achondrite (Howardite) History: An importer of Moroccan meteorites brought a collection of stones to Robert Verish for classification. Physical characteristics: Two fragments (33.6 + 18.7 g), 60% covered with a brownish-black fusion-crust. A broken surface, as well as the cut surface reveals a light-gray interior with a variety of clasts of different color and size, some lighter-colored than the gray matrix. Petrography: (D. Sheikh, Cascadia) Sample is a breccia composed of sub-angular lithic and mineral clasts (up to ~0.8 mm) set within a fine-grained matrix. Lithic clast lithologies include both blocky clasts dominated by orthopyroxene (~50 %) and other clasts (both basaltic and cumulate) composed of low-Ca pyroxene, pigeonite (some exsolved), augite (some exsolved), and calcic plagioclase (~50 %). One large diogenite clast composed of orthopyroxene (~ 5 mm) is present in the observed thin section. Accessory phases (<1 %) include SiO2-rich glass, ilmenite, troilite, and chromite. Geochemistry: Blocky clasts (diogenite): Low-Ca Pyroxene (Fs26.4±5.6Wo2.6±1.2, range Fs17.0-36.2Wo1.1-5.1, FeO/MnO=34±5, n=15); other clasts (eucrite): Low-Ca Pyroxene (Fs46.5±6.4Wo4.9±1.1, range Fs40.2-58.9Wo3.1-6.0, FeO/MnO=35±2, n=6), Pigeonite (Fs43.0±7.9Wo9.3±4.8, range Fs29.6-53.6Wo6.0-23.6, FeO/MnO=32±2, n=13), Augite (Fs33.8±4.1Wo32.3±8.4, range Fs30.1-38.3Wo26.0-41.8, FeO/MnO=33±1, n=3), Calcic Plagioclase (An89.4±4.0, range An81.2-94.7, n=11). Classification: HED achondrite (Howardite) Specimens: 13.6 g at UCLA, main mass with Verish | ||||||||||||||||||||||||||||||
| 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) UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009) |
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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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| Photos: |
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| Geography: |
Statistics: This is 1 of 9933 approved meteorites from (Northwest Africa) (plus 1837 unapproved names) | ||||||||||||||||||||||||||||||