header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:
 
Northwest Africa 13423
Basic information Name: Northwest Africa 13423
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13423
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 3.42 kg
Classification
  history:
Meteoritical Bulletin:  MB 109  (2020)  H4
Recommended:  H4    [explanation]

This is 1 of 6493 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 5 Sep 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13423 (NWA 13423)

(Northwest Africa)

Purchased: 2019 Oct

Classification: Ordinary chondrite (H4)

History: Purchased by Grant Harkness in October 2019 from a dealer in Zagora, Morocco.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed chondrules are set in a relatively coarse grained matrix containing altered metal, troilite, chromite and chlorapatite.

Geochemistry: Olivine (Fa19.1±0.3, range Fa18.7-19.4, N = 5), low-Ca pyroxene (Fs16.9±0.1Wo1.3±0.2, range Fs16.7-17.1Wo1.1-1.5, N = 5).

Classification: Ordinary chondrite (H4).

Specimens: 36.75 g including one polished thin section at PSF; remainder with Jason Whitcomb.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2019 Oct
Mass (g):3420
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):19.1±0.3
Ferrosilite (mol%):16.9±0.1
Wollastonite (mol%):1.3±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):36.75
Type spec location:PSF
Main mass:Harkness Collection
Comments:Work name HC-16; submitted by A. Irving
Institutions
   and collections		 PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

Direct link to this page