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Northwest Africa 2052
Basic information Name: Northwest Africa 2052
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2052
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 226 g
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 7220 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 29 May 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 2052 (NWA 2052)

(Northwest Africa)

Purchased: 2003

Classification: Ordinary chondrite (L5)

History: Purchased by Mike Farmer in 2003 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving, UWS and J. Boesenberg, Brown U.) Sparse chondrules occur in a largely recrystallized assemblage containing accessory sodic plagioclase, chromite, kamacite, troilite and chlorapatite.

Geochemistry: Olivine (Fa25.0±0.5, range Fa24.5-25.6, N = 6), low-Ca pyroxene (Fs21.1±0.4Wo1.5±0.4, range Fs20.5-21.3Wo1.2-2.1, N = 4), augite (Fs8.2Wo44.3).

Classification: Ordinary chondrite (L5).

Specimens: 22.6 g including one polished thin section is at PSF; remainder with Mr. M. Farmer.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2003
Mass (g):226
Pieces:1
Class:L5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):25.0±0.5
Ferrosilite (mol%):21.1±0.4
Wollastonite (mol%):1.5±0.4
Classifier:A. Irving, UWS, and J. Boesenberg, Brown U.
Type spec mass (g):22.6
Type spec location:PSF
Main mass:M. Farmer
Comments: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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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