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| Northwest Africa 11605 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 11605 This is an OFFICIAL meteorite name. Abbreviation: NWA 11605 Observed fall: No Year found: 2016 Country: Algeria Mass:  2.13 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 449 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 11605 (NWA 11605) 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 ~10-15 vol% of diogenite lithologies. Basaltic eucrite lithologies mostly have a fine-grained recrystallized or subophitic texture and contain very fine-grained vitrophyric textured basaltic lithologies. Diogenites lithologies are mostly a orthopyroxene. The matrices are mostly basaltic detritus. Accessories are silica, ilmenite, chromite, troilite. Geochemistry (L.Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=32.5; Orthopyroxene of diogenite lithologies: median compositions are Mg#=67.1, Fs31.9Wo3.2 (n=16). Low-Ca pyroxene of basaltic eucrite lithologies: median compositions are Mg#=37.4, Fs60.4Wo3.6 (n=14). High-Ca pyroxene of basaltic eucrite lithologies: median compositions are Mg#=54.1, Fs26.3Wo42.7 (n=8). Plagioclase: median An91.3Or0.4 (n=10). Classification: Polymict brecciated howardite Specimens: 0.6 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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Geography:
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Statistics: This is 1 of 1306 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||