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Northwest Africa 11801
Basic information Name: Northwest Africa 11801
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11801
Observed fall: No
Year found: 2016
Country: Algeria
Mass:help 67.1 g
Meteoritical Bulletin:  MB 107  (2018)  Lunar
Recommended:  Lunar    [explanation]

This is 1 of 101 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 7 Jun 2018
Writeup from MB 107:

Northwest Africa 11801 (NWA 11801)


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:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016 May 1
Mass (g):67.05
Classifier:B. Miao, H.Liu, Z. Xia, GUT
Type spec mass (g):67.05
Type spec location:GUT
Main mass:GUT
Comments:Submitted by Bingkui Miao
   and collections
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Public domain photographs:
Zhipeng Xia         


     This is 1 of 1250 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)
Synonymshelp: M16005 (Appears in Chinese literature)

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