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Northwest Africa 7714 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7714 This is an OFFICIAL meteorite name. Abbreviation: NWA 7714 Observed fall: No Year found: 2012 Country: (Northwest Africa) Mass: 119 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 451 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||
Comments: | Approved 1 Mar 2013 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 7714 (NWA 7714) (Northwest Africa) Purchased: 2012 Classification: HED achondrite (Howardite) Petrography: The fresh greyish breccia is composed of diogenetic clasts dominating over basaltic eucrite clasts set in a fine-grained clastic matrix. Diogenitic fragments are composed of large blocky orthopyroxene and Ca-rich plagioclase crystals, eucrite clasts dominated by exsolved Ca-pyroxenes and often lath-shaped calcic plagioclase. Accessories in both lithologies include silica, chromite, and troilite. Geochemistry: Diogenitic orthopyroxene Fs25.8-30.5Wo2.1-3.6, FeO/MnO=26-38; low-Ca pyroxene Fs32.2-49.1Wo2.1-6, FeO/MnO=23-36; high-Ca pyroxene Fs60.5-63.9Wo24.8-34.5, FeO/MnO=38-56; calcic plagioclase An91.2, range An84.1-93.9. | ||||||||||||||||||||||||||||
Data from: MB102 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) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Photos: |
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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