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Northwest Africa 11599 | |||||||||||||||||||||
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Basic information | Name: Northwest Africa 11599 This is an OFFICIAL meteorite name. Abbreviation: NWA 11599 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 11599 (NWA 11599) Algeria Purchased: 2016 May 1 Classification: HED achondrite (Eucrite) History: Purchased by Miao Bing-an in 2016 in Morocco. Physical characteristics: Single stone with black fusion crust. A saw cut reveals a mosaic of gray, coarse-grained, interlocking crystals. Petrography (L. Huang, B. Miao, H. Chen, GUT): Unbrecciated cumulate lithologies containing coarse-grained (~0.5-1.1 mm) gabbros composed principally of low-Ca clinopyroxene and calcic plagioclase (~20-40 vol%) with minor chromite (coarse-grained ~0.5-1.0 mm). Texture is equigranular with subequal amounts of pyroxene and plagioclase grains. Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=28.6. Low-Ca pyroxene of cumulate lithologies: median compositions are Mg#=63.1, Fs36.0Wo2.4 (n=29). High-Ca pyroxene of cumulate lithologies: median compositions are Mg#=73.2, Fs14.5Wo46.0 (n=23). Plagioclase: An89.4-91.4Or0.1-0.7, median An90.2Or0.5 (n=18). Classification: Gabbroic cumulate eucrite Specimens: 8.9 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:![]() |
Statistics: This is 1 of 1250 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters) |