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Northwest Africa 13120
Basic information Name: Northwest Africa 13120
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13120
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 819 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 189 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 31 Jan 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13120 (NWA 13120)

Southern Provinces, Morocco

Find: 2015

Classification: Lunar meteorite (feldspathic breccia)

History: The meteorite was purchased in Tucson by Zhouping Guo.

Physical characteristics: A single bulk specimen lacks fusion crust. The sample specimen has obvious breccia characteristics and presents two different color regions: the dark color region with a polished external appearance; the light color region with a large amount of fine-grained terrestrial mineral fragment on the surface.

Petrography: Petrology (Z.Xia, B.Miao, GUT): The polished section was cut from the light color region of the specimen. The observation of petrology of this meteorite is based on this polished section. The meteorite shows typical breccia structure and large-area melt. All the lithological clast are melt-rock, except a basalt clast (80 × 160 μm). The matrix is dominated by glass with lot of vesicles, as well as few very-fine particles (<10 μm). The chemical composition of the glass is similar with that of anorthite. The main mineral is plagioclase, with a small amount of olivine, pyroxene, ilmenite, and troilite. Pyroxenes show chemical zoning in basalt clast. The abundance of the vesicles reaches 4 vol%.

Geochemistry (Z.Xia, B.Miao, GUT): Plagioclase: An92.1-96.4Or0.03-0.71 (n=48); Olivine: Fa27-35, Fe/Mn=78-101 in melt-rock clast. Pyroxene in basalt: Fs15.11-69.72Wo22.36-46.14, Fe/Mn=37-73; Glass: SiO2 42.9 wt%, Al2O3 35.93 wt%, CaO 19.9 wt%, FeO 0.47 wt%, Na2O 0.49 wt%, MgO 0.18 wt%, K2O 0.01 wt%.

Classification: Lunar (felspathic breccia)

Specimens: Two polished sections and about 20 g sample are stored in the Institution of Meteorites and Planetary Materials Research of GUT, the main mass is exhibited in the Geological Museum of Guilin.

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Southern Provinces
Place of purchase:Tucson
Date:2015
Mass (g):818.7
Pieces:1
Class:Lunar (feldsp. breccia)
Classifier:Z.Xia, B.Miao. H.Chen, GUT
Type spec mass (g):20
Type spec location:GUT
Main mass:Geological Museum of Guilin
Finder:Anonymously
Comments:The name "C-201901L" was used in Chinese conference before this submission.; submitted by Bingkui Miao
Institutions
   and collections
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
Zhipeng Xia      
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is the only approved meteorite from Southern Provinces, Morocco
     This is 1 of 1448 approved meteorites from Morocco (plus 21 unapproved names) (plus 1 impact crater)

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