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Northwest Africa 15263
Basic information Name: Northwest Africa 15263
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15263
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 758 g
Classification
  history:
Recommended:  H3    [explanation]

This is 1 of 668 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 14 Sep 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15263 (NWA 15263)

(Northwest Africa)

Purchased: 2021 Oct

Classification: Ordinary chondrite (H3)

History: Purchased by Jason Whitcomb in October 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed, somewhat unequilibrated chondrules containing devitrified glass occur within a relatively coarse grained matrix containing altered kamacite, taenite, troilite, chromite and merrillite, but no plagioclase.

Geochemistry: Olivine (Fa20.7±4.2, range Fa18.4-29.7, Cr2O3 < 0.05 wt.%, N = 8), low-Ca pyroxene (Fs16.3±0.3Wo1.4±0.3, range Fs16.1-16.6Wo1.1-1.8, N = 5).

Classification: Ordinary chondrite (H3).

Specimens: 28.5 g including one polished thick section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Oct
Mass (g):758
Pieces:1
Class:H3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):20.7±4.2
Ferrosilite (mol%):16.3±0.3
Wollastonite (mol%):1.4±0.3
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):28.5
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-126; 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: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8636 approved meteorites from (Northwest Africa) (plus 1884 unapproved names)

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