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Northwest Africa 1756
Basic information Name: Northwest Africa 1756
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1756
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 68.2 g
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  LL3.0/3.2
MetBase:  v. 7.1  (2006)  LL3.1
Recommended:  LL3.10    [explanation]

This is 1 of 5 approved meteorites classified as LL3.10.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Revised 1 Sep 2007: Reclassified by Grossman and Brearley (2005)
Writeuphelp
Writeup from MB 88:

Northwest Africa 1756

Morocco

Found 2002

Ordinary chondrite (LL3.0/3.2)

A 68.2 g meteorite was purchased in Safsaf, October, 2002. Classification and mineralogy (T. Bunch and J. Wittke, NAU): monomict chondritic breccia; chondrules are very similar to equivalent chondrules in the LL3.0 Semarkona chondrite in terms of phase/mesostasis compositions, zoning profiles, and textures. Type IA olivine: FeO = 0.21 to 1.94 wt%; CaO = 0.31 to 0.51 wt%. Type IIA olivine: FeO = 11.8 to 15.9 wt%; CaO = 0.10 to 0.19 wt%; P2O5 = 0.09 to 0.36 wt%; Chondrule mesostasis is optically isotropic. Matrix metal is Ni-rich (50 to 60 wt%) and occurs in metal-pyrrhotite-haxonite ± magnetite, chromite, carbon, cohenite, 0.1 to 0.2 mm aggregates; metal contains small (<1 µm) SiO2-rich inclusions. Shock level, S1; one xenolith is S4; weathering grade, W1/W2. Specimens: type specimen, 12.5 g and 2 thin sections, NAU; main mass, xHupé.

Data from:
  MB88
  Table 4
  Line 22:
Place of purchase:Safsaf
Date:Oct 2002
Mass (g):68.2
Pieces:1
Class:LL3
Classifier:T. Bunch and J. Wittke, NAU
Type spec mass (g):12.5
Type spec location:ASU
Main mass:Hupé
Institutions
   and collections
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
xHupé: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Meteorites Australia   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Anthony James   
David Hardy   
Gerald Armstrong   
John Lutzon   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6551 approved meteorites from (Northwest Africa) (plus 2022 unapproved names)

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