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Northwest Africa 11572 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11572 This is an OFFICIAL meteorite name. Abbreviation: NWA 11572 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 8 approved meteorites (plus 1 unapproved name) classified as H4-melt breccia. [show all] Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 16 Jan 2018 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 107:
Northwest Africa 11572 (NWA 11572) (Northwest Africa) Purchased: March 2017 Classification: Ordinary chondrite (H4, melt breccia) History: Purchased by Sean Tutorow and Brahim Tahiri from several diferent meteorite hunters in Morocco. Petrography: The rock is an impact-melt breccia. Melted regions are very dark; they contain numerous metal-sulfide veins, polycrystalline troilite and rare cellular, rapidly cooled metal-sulfide assemblages. There are rare grains of coarse troilite. Most metal grains are not attached to sulfide grains. Some low-Ca pyroxene grains exhibit polysynthetic twinning, perhaps caused by post-shock quenching. There is strong mosaic extinction evident in the olivine grains. | ||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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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. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) | ||||||||||||||||||||||||||||||
Synonyms![]() |
Northwest Africa 12602 (NWA 12602 is the same meteorite as NWA 11572) NWA 12602 (NWA 12602 is the same meteorite as NWA 11572) |