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| Northwest Africa 4019 | |||||||||||||||||
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| Basic information | Name: Northwest Africa 4019 This is an OFFICIAL meteorite name. Abbreviation: NWA 4019 Observed fall: No Year found: 2005 Country: (Northwest Africa) Mass:  505 g | ||||||||||||||||
| Classification history: |
This is 1 of 393 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||
| Comments: |
Approved 3 Feb 2006 Revised 9 Sep 2006: Update classification | ||||||||||||||||
| Writeup |
Writeup from MB 90:
Northwest Africa 4019 Northwest Africa Find: 2005 Achondrite (eucrite, polymict) History: A single stone of 504.7 g partly covered with fusion crust was found in 2005 in the western part of the Sahara in Morocco. Petrography: (A. Greshake, MNB) A polymict breccia dominated by large basaltic clasts set into a fine-grained groundmass with rare melt clasts and large mineral fragments, the latter being mostly plagioclase and exsolved Ca pyroxene. Minor phases include silica and ilmenite. Geochemistry: Plagioclase (An74.1–90.7), pyroxene (Fs41.6–65.4Wo2.9–29.3). Classification: Achondrite (eucrite, polymict); low shock, minimal weathering. Specimens: A 22 g type specimen and one polished thin section are on deposit at MNB. HSSH-Pirmasens of Germany holds the main mass. | ||||||||||||||||
| Data from: MB90 Table 2 Line 241: |
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| Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
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| Photos: |
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| Geography: |
Statistics: This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||