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Northwest Africa 13416
Basic information Name: Northwest Africa 13416
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13416
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 1834 g
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 7227 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 5 Sep 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13416 (NWA 13416)

(Northwest Africa)

Purchased: 2015 Sep

Classification: Ordinary chondrite (L5)

History: Purchased by Blaine Reed in September 2015 from a Moroccan dealer at the Denver Show.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Sparse chondrules are set in a recrystallized matrix containing altered metal, troilite, chromite and chlorapatite.

Geochemistry: Olivine (Fa24.8±0.3, range Fa24.5-25.2, N = 6), low-Ca pyroxene (Fs20.7±0.2Wo1.6±0.2, range Fs20.4-20.9Wo1.2-1.8, N = 6)

Classification: Ordinary chondrite (L5).

Specimens: 44.7 g including one polished thin section at PSF; remainder with Mr. B. Reed.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Denver
Date:P 2015 Sep
Mass (g):1834
Pieces:1
Class:L5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):24.8±0.3
Ferrosilite (mol%):20.7±0.2
Wollastonite (mol%):1.6±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):44.7
Type spec location:PSF
Main mass:B. Reed
Comments:Work name BR109; 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)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ryan Upchurch   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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