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Northwest Africa 10290
Basic information Name: Northwest Africa 10290
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10290
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 1571 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L4
Recommended:  L4    [explanation]

This is 1 of 2104 approved meteorites (plus 5 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 4 Sep 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10290 (NWA 10290)

(Northwest Africa)

Purchased: 2015 May

Classification: Ordinary chondrite (L4)

History: Purchased by Fabien Kuntz in May 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Very closely-packed, well-formed chondrules (apparent diameter 0.3-2.5 mm) are set in a very sparse matrix (~5 vol.%).

Geochemistry: Olivine (Fa25.2-25.4 N = 3), orthopyroxene (Fs19.1-21.3Wo4.5-4.1, N = 3), augite (Fs8.1-9.1Wo41.8-39.6, N = 2).

Classification: Ordinary chondrite (L4).

Specimens: 25.99 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015 May
Mass (g):1571
Pieces:1
Class:L4
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):25.2-25.4
Ferrosilite (mol%):19.1-21.3
Wollastonite (mol%):4.5-4.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):25.99
Type spec location:PSF
Main mass:F. Kuntz
Comments:K259; 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)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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