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| Northwest Africa 628 | |||||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 628 This is an OFFICIAL meteorite name. Abbreviation: NWA 628 Observed fall: No Year found: 2000 Country: (Northwest Africa) Mass:  176.6 g | ||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 6826 approved meteorites (plus 6 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||
| Comments: | Approved 5 Dec 2015 | ||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 104:
Northwest Africa 628 (NWA 628) (Northwest Africa) Find: 2000 Classification: Ordinary chondrite (H6) History: 1 stone weighing 176.6 g was found in Morocco and sold to Michael Cottingham. Thomas Webb acquired the sample in November of 2000. Physical characteristics: The oriented stone is brown and flattened in shape. A weathered, dark-brown fusion crust covers approximately 35% of the exterior of the stone and displays a continuous rollover lip around the trailing edge. The cut face of the interior of the stone is brown and displays small chondrules, chondrule fragments and fresh and weathered flakes of metal. Petrography: Description and classification (A. Love, App): Sample displays recrystallized chondritic texture with a few remaining relict chondrules. Relict chondrules have an avg. diameter of 607 μm. Porphyritic chondrules have completely recrystallized mesostasis regions. Geochemistry: (A. Love, App): Olivine Fa19.2±0.2, N=6; Low Ca pyroxene Fs17.1±0.2Wo1.9±0.2, N=9 Classification: Based on olivine and pyroxene compositions and texture, this is an ordinary chondrite (H6, S3, W2). Specimens: A polished thin section, an endcut, several slices and small fragments weighing 22.3 g are currently on deposit at App. | ||||||||||||||||||||||||||||||||
| Data from: MB104 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) TWebb: No contact information provided., United States (private address) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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| Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||||
| Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
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| Revision history: |
This lists important revisions made to data for this record.
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