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Northwest Africa 11801 | |||||||||||||||||||||
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Basic information | Name: Northwest Africa 11801 This is an OFFICIAL meteorite name. Abbreviation: NWA 11801 Observed fall: No Year found: 2016 Country: Algeria Mass: 67.1 g | ||||||||||||||||||||
Classification history: |
This is 1 of 104 approved meteorites classified as Lunar. [show all] Search for other: Lunar meteorites | ||||||||||||||||||||
Comments: | Approved 7 Jun 2018 | ||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11801 (NWA 11801) Algeria Purchased: 2016 May 1 Classification: Lunar meteorite History: Purchased by Miao Bing-an in 2016 from Morocco. Physical characteristics: This meteorite is in irregular and brecciated, partially covered with black fusion crust. A saw cut reveals an abundance of fragments set in dark-colored matrix. Petrography: The section is composed of abundant mineral fragments and a few lithic clasts and glass set in a fine-grained matrix. The mineral fragments, lithic clasts, and glass areas show irregular shapes and variable textures with different sizes (from ~10 μm to ~4.1 mm across). The matrix is made up of fine-grained minerals bound by glassy cement.Mineral fragments include plagioclase, pyroxene, olivine, and minor ilmenite, chromite, silica, Ni-Fe metal, troilite, armalcolite, k-feldspar. The section contains various types of lithic clasts (anorthosite, gabbro, troctolite, and crystalline impact melt breccia). Several glassy spheres and veins were found in the thin section. One anomalously large glassy vein (up to 2.7 mm thick) that crosscut the section was observed. Geochemistry: Plagioclase An91-96Or<0.4; pyroxene Wo4-36En7-69; olivine Fo10-83. The Fe/Mn ratios of pyroxene and olivine in this meteorite lie approximately along the lunar line, although the range of values is very large (44-79 for pyroxene and 72-127 for olivine). Classification: Lunar (breccia) Specimens: specimen and a 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 1336 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||
Also see: |
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Synonyms: |
M16005 (Appears in Chinese literature) | ||||||||||||||||||||
Revision history: |
This lists important revisions made to data for this record.
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