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Northwest Africa 11606 | |||||||||||||||||||||
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Basic information | Name: Northwest Africa 11606 This is an OFFICIAL meteorite name. Abbreviation: NWA 11606 Observed fall: No Year found: 2016 Country: Algeria Mass: ![]() | ||||||||||||||||||||
Classification history: |
This is 1 of 432 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||
Comments: | Approved 9 Feb 2018 | ||||||||||||||||||||
Writeup![]() |
Writeup from MB 107:
Northwest Africa 11606 (NWA 11606) Algeria Purchased: 2016 May 1 Classification: HED achondrite (Howardite) History: Purchased by Miao Bing-an in 2016 in Morocco. Physical characteristics: The medium-gray matrix contains a variety of clasts and fusion crust is not found in this small sample. Petrography (L. Huang, B. Miao, H. Chen, GUT): Breccia containing a variety of eucrite lithologies with ~20%-40 vol% diogenite lithologies. Basaltic eucrite lithologies mostly have subophitic texture. The texture of cumulate eucrite lithologies is equigranular with subequal amounts of pyroxene and plagioclase grains. Diogenites lithologies are mostly orthopyroxene. The matrices are mostly basaltic detritus. A higher C content chondritic clast (carbonaceous chondrite) was found in this section. Accessories are silica, ilmenite, chromite, troilite. Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=30.1; Orthopyroxene of diogenite lithologies: median compositions are Mg#=65.0, Fs34.2Wo2.4 (n=12). Low-Ca pyroxene of cumulate eucrite lithologies: median compositions are Mg#=46.2, Fs53.1Wo1.3 (n=8). Low-Ca pyroxene of basaltic eucrite lithologies: median compositions are Mg#=36.3, Fs61.9Wo2.9 (n=15). High-Ca pyroxene of basaltic eucrite lithologies: median compositions are Mg#=51.8, Fs27.6Wo42.7 (n=8). Plagioclase: median An90.5Or0.4 (n=10). Classification: Polymict brecciated howardite Specimens: 1.3 g and polished thin section are deposited in GUT | ||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Photos: |
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Geography:![]() |
Statistics: This is 1 of 1250 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters) |