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Northwest Africa 12794 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12794 This is an OFFICIAL meteorite name. Abbreviation: NWA 12794 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 31 approved meteorites classified as L5-melt breccia. [show all] Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||
Comments: | Approved 5 Apr 2020 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 12794 (NWA 12794) Sahara Purchased: 2004 Classification: Ordinary chondrite (L5, melt breccia) History: A single stone weighing 7 g was bought from a dealer from Morocco Petrography: The rock mainly consists of fine-grained material embedding a large clast of L5 chondrite. The fine-grained portion has a melt texture with olivine and pyroxene embedded in a feldspathic matrix. The melt portion also contains metal-sulfide assemblages as typical for other melt rocks. Geochemistry: Random analyses of the rock revealed mean olivine and pyproxene composition of Fa24.0±1.9 (n=15) and Fs18.4±1.7 (n=18), respectively. Classification: Ordinary chondrite (L5-melt breccia) Specimens: IfP: 2.1 g and 1 thin section | ||||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |