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| Northwest Africa 6819 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 6819 This is an OFFICIAL meteorite name. Abbreviation: NWA 6819 Observed fall: No Year found: 2009 Country: Morocco Mass:  500 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 30 approved meteorites classified as Diogenite-olivine. [show all] Search for other: Achondrites, Diogenites, and HED achondrites | ||||||||||||||||||||||||||||||
| Comments: | Approved 23 Jun 2011 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 100:
Northwest Africa 6819 (NWA 6819) Morocco Purchased: 2009 Classification: HED achondrite (Diogenite, olivine) Petrography (P. Warren, UCLA): Mode: ~90% orthopyroxene, 10% olivine, traces of metal, Cr-spinel and FeS. The texture is brecciated, but some grains appear to retain nearly their original outlines, and these tend to be equant and range up to 2.5 mm for olivine and 4 mm for orthopyroxene. Geochemistry: Metals are nearly pure Fe (Ni not detectable by EDS). Orthopyroxene FeO/MnO averages 27. Cr-spinel has 30 wt% FeO, 17 wt% Al2O3, 3.1 wt% MgO. | ||||||||||||||||||||||||||||||
| Data from: MB100 Table 1 Line 1511: |
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| Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) |
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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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| Photos: |
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Geography:
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Statistics: This is 1 of 2163 approved meteorites from Morocco (plus 32 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||