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Northwest Africa 5406
Basic information Name: Northwest Africa 5406
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5406
Observed fall: No
Year found: 2008
Country: Morocco
Mass:help 281 g
Classification
  history:
Meteoritical Bulletin:  MB 95  (2009)  Lunar feld. Breccia
Recommended:  Lunar    [explanation]

This is 1 of 108 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 23 Dec 2008
Writeuphelp
Writeup from MB 95:

Northwest Africa 5406

Morocco

Find: July 2008

Achondrite (lunar, feldspathic breccia)

History: Purchased by Greg Hupé in July 2008 from a dealer in Ouarzazate, Morocco, who reported that these stones were found in the same area as NWA 4936 near Siksou Mountain in southern Morocco.

Physical characteristics: Six, dark gray, mostly very fine-grained stones (total weight 281 g) with hackly fracture and lacking obvious fusion crust. The interior of each stone resembles devitrified glass with dispersed small white clasts.
Petrography: (A. Irving and S. Kuehner, UWS) All specimens are composed of small mineral clasts and sparse lithic clasts in a very fine-grained matrix (which has the texture of an impact melt with heterogeneous, “swirly” glass). Mineral clasts include anorthite, olivine, pigeonite, subcalcic augite, ilmenite, troilite, and irregular-shaped grains of kamacite.

Geochemistry: Pigeonite (Fs34.7Wo9.8, FeO/MnO = 59.9), augite (Fs55.8Wo26.4, FeO/MnO = 72.6), olivine (Fa25.7–27.0, FeO/MnO = 85.3–120), plagioclase (An96.2–97.2Or0.0). Bulk composition (R. Korotev, WUSL): FeO 5.8 wt%, Th 2.0 ppm, Sc 9.1 ppm, Ni 520 ppm, Sm 6.3 ppm.

Classification: Achondrite (lunar, feldspathic breccia). These stones have essentially the same distinctive textures, mineral compositions and bulk composition as NWA 4936, and are almost certainly paired with the latter stones.

Specimens: A total of 20.0 g of is on deposit at UWS. The main masses are held by Mr. G. M. Hupé.

Data from:
  MB95
  Table 2
  Line 115:
Place of purchase:Morocco
Date:2008
Mass (g):281
Pieces:6
Class:Lunar feld. Breccia
Fayalite (mol%):25.7-27.0
Ferrosilite (mol%):34.7,55.8
Wollastonite (mol%):9.8,26.4
Classifier:T. Irving, UWS
Type spec mass (g):20
Type spec location:UWS
Main mass:GHupé
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)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 95, MAPS 44, 429-462 (2009)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2163 approved meteorites from Morocco (plus 32 unapproved names) (plus 1 impact crater)

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