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| Northwest Africa 14934 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14934 This is an OFFICIAL meteorite name. Abbreviation: NWA 14934 Observed fall: No Year found: 2022 Country: Mauritania Mass:  12.3 kg | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 220 approved meteorites classified as Eucrite-br. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||
| Comments: | Approved 18 May 2022 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 111:
Northwest Africa 14934 (NWA 14934) Mauritania Purchased: 2022 Classification: HED achondrite (Eucrite, brecciated) History: A single piece was found by a nomad from undisclosed coordinates in northwest Africa. The meteorite was eventually purchased by Carlos Muñecas (Expometeoritos) from a dealer in Mauritania. Physical characteristics: Sample has a dark brown exterior with an irregular shape. The cut face shows an igneous texture. Petrography: Description and classification (A. Love, App) Sample has a brecciated texture composed of sparse gabbroic clasts (pigeonite up to 600µm in length) enclosed within a finer-grained (pigeonite up to 150 µm) vesicular and vuggy, subophitic-textured lithology composed of lath-shaped plagioclase surrounding embayed, chaotically-zoned, polycrystalline aggregates of pigeonite. Additional minerals are: ilmenite, Ti-bearing chromite rare troilite, phosphates and a silica polymorph (some is lath-shaped). Geochemistry: (A. Love, App) Pigeonite (Fs47.1±5.1Wo12.2±2.4, Mg#46.3±6.8, Fe/Mn=30.5±1.7, n=23); plagioclase (An91.2±3.2Or0.0, n=8). Classification: HED achondrite (eucrite breccia). Based on grain size of clasts, plagioclase compositions, Fe/Mn ratios of pigeonite and texture, sample is a gabbroic eucrite breccia. Specimens: Carlos Muñecas (Expometeoritos) holds the main mass. A polished thin section and 58.55 g endcut are on deposit at App. | ||||||||||||||||||||||||||||||
| Data from: MB111 Table 0 Line 0: |
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| Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography:
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Statistics: This is 1 of 193 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters) | ||||||||||||||||||||||||||||||