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Northwest Africa 13373
Basic information Name: Northwest Africa 13373
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13373
Observed fall: No
Year found: 2018
Country: Mauritania
Mass:help 920 g
Classification
  history:
Meteoritical Bulletin:  MB 109  (2020)  H5
Recommended:  H5    [explanation]

This is 1 of 11567 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 2 Aug 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13373 (NWA 13373)

Mauritania

Find: 2018

Classification: Ordinary chondrite (H5)

History: Collected by a nomad in an undetermined place in northern Mauritania during 2018. Purchased by Geologist Juan Avilés Poblador in Spring 2019 on behalf of UAlic (Earth Sciences Department, Laboratory of Applied Petrology).

Physical characteristics: The single, 919.7 g irregularly shaped stone has as red-brown exterior. Veins are visible on cut surfaces.

Petrography: (C. Herd and H. Shek, UAb) Optical and microprobe examination of a polished thin section shows well-delineated chondrules cross-cut locally by veins. Minor iron staining is present. Olivine has sharp optical extinction with <2° angular variation. Veins do not appear to involve significant shock melting.

Geochemistry: (C. Herd and H. Shek, UAb) Data obtained by EMP examination of carbon-coated thin section: Olivine Fa19.4±0.6 (n=94); Low-Ca Pyroxene Fs17.6±1.2Wo1.0±0.2 (n=81).

Classification: Ordinary chondrite, H5

Specimens: Type specimen of 91.1 g, including one thin section, is at UAb. Main mass at UAlic.

Data from:
  MB109
  Table 0
  Line 0:
Date:2018
Mass (g):919.7
Pieces:1
Class:H5
Shock stage:S1
Weathering grade:W1.0
Fayalite (mol%):19.4±0.6 (n=94)
Ferrosilite (mol%):17.6±1.2 (n=81)
Wollastonite (mol%):1.0±0.2 (n=81)
Classifier:C. Herd, UAb
Type spec mass (g):91.3
Type spec location:UAb
Main mass:UAlic
Comments:Field number 21542; submitted by C. Herd
Institutions
   and collections		 UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
UAlic: Earth Sciences Department University of Alicante San Vicente del Raspeig, Spain (institutional address; updated 9 Feb 2020)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography:

Mauritania
Coordinates:Unknown.

Statistics:
     This is 1 of 221 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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