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Northwest Africa 13353
Basic information Name: Northwest Africa 13353
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13353
Observed fall: No
Year found: 2020
Country: Algeria
Mass:help 222 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 7 Jul 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13353 (NWA 13353)

Algeria

Purchased: 2020 Mar

Classification: Carbonaceous chondrite (CO3)

History: Purchased by John Higgins in March 2020 from an Algerian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Small well-formed chondrules (apparent diameter 240 ± 140 µm, N = 22) together with some angular, zoned olivine grains and sparse very fine grained CAI are set in a fine grained matrix (~25 vol.%, brown in thin section) containing calcic plagioclase, kamacite and troilite plus minor secondary calcite and jarosite.

Geochemistry: Olivine (Fa19.9±15.0, range Fa0.8-38.2, N = 5; Cr2O3 in ferroan olivine = 0.02-0.09 wt.%), orthopyroxene (Fs4.3±3.2Wo2.1±1.8, range Fs1.2-8.3Wo0.3-4.2, N = 4), augite (Fs4.0±3.9Wo41.7±0.0, N = 2).

Classification: Carbonaceous chondrite (CO3).

Specimens: 20.4 g including one polished thin section at UWB; remainder with Mr. J. Higgins.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2020 Mar
Mass (g):221.5
Pieces:many
Class:CO3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):19.9±15.0
Ferrosilite (mol%):4.3±3.2
Wollastonite (mol%):2.1±1.8
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.4
Type spec location:UWB
Main mass:J. Higgins
Comments:Work name JH20-1; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1017 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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