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Northwest Africa 11602 | |||||||||||||||||||||
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Basic information | Name: Northwest Africa 11602 This is an OFFICIAL meteorite name. Abbreviation: NWA 11602 Observed fall: No Year found: 2016 Country: Algeria Mass: ![]() | ||||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||
Comments: | Approved 9 Feb 2018 | ||||||||||||||||||||
Writeup![]() |
Writeup from MB 107:
Northwest Africa 11602 (NWA 11602) Algeria Purchased: 2016 May 1 Classification: HED achondrite (Eucrite) History: Purchased by Miao Bing-an in 2016 in Morocco. Physical characteristics: Thin, shiny, black fusion crust covers 60% of the exterior of this sample. No fractures exist. Cleaving this achondrite revealed an interior with coarse-grained matrix containing an even distribution of white laths. The specimen is coherent and weathering is minimal. Petrography (L. Huang, B. Miao, H. Chen, GUT): This meteorite is an unbrecciated pigeonite-plagioclase rock with medium grain size. With rhyolitic structure, it contains fine to medium-grained (~0.05-0.5 mm) pyroxenes and granular plagioclase grains. Pyroxenes generally contain pigeonite with augite lamellae. Accessories are silica, ilmenite, troilite and rare iron metal. Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=31.7. Low-Ca pyroxene: median compositions are Mg#=37.3, Fs60.6Wo3.5 (n=34). augite lamellae : median compositions are Mg#=50.7, Fs27.9Wo43.4 (n=35). Plagioclase: An88.4-90.2Or0.1-0.4, median An90.6Or0.3 (n=22). Classification: Basaltic unbrecciated eucrite Specimens: 10.8 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) |