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Northwest Africa 6919 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6919 This is an OFFICIAL meteorite name. Abbreviation: NWA 6919 Observed fall: No Year found: 2011 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 29 Nov 2011 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 100:
Northwest Africa 6919 (NWA 6919) Northwest Africa Purchased: Apr 2011 Classification: HED achondrite (Eucrite) Petrography: Relatively fine-grained, monomict breccia composed of clasts of basaltic eucrite, consisting of exsolved pigeonite, calcic plagioclase, silica polymorph and accessory ilmenite and zircon. Exsolved pigeonite contains abundant clinopyroxene exsolution lamellae (some kinked). Geochemistry: Orthopyroxene Fs60.6-61.6Wo2.2-1.9, FeO/MnO=30-33, clinopyroxene lamellae Fs25.7-26.7Wo44.3-43.0, FeO/MnO=29-32. | ||||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1539: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography: |
Statistics: This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |