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Northwest Africa 3145
Basic information Name: Northwest Africa 3145
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 3145
Observed fall: No
Year found: 2004
Country: Morocco
Mass:help 678 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Achondrite-prim
MetBase:  v. 7.1  (2006)  Achondrite-ung
Recommended:  Achondrite-prim    [explanation]

This is 1 of 14 approved meteorites classified as Achondrite-prim.   [show all]
Search for other: Primitive achondrites
Writeuphelp
Writeup from MB 89:

Northwest Africa 3145

Morocco

Purchased 2004 November

Primitive achondrite

A single stone weighing 678.4 g was purchased by H. Strufe (Strufe) from a Moroccan dealer in Erfoud in 2004 November.  Classification and mineralogy (A. Irving and S. Kuehner, UWS; T. Bunch, NAU):  Metamorphic aggregate (average grainsize 0.2 mm) consisting of olivine (Fa18.2 -18.7, FeO/MnO = 35.0-37.6), orthopyroxene (Fs16.2Wo4.0 to Fs16.6Wo4.2, FeO/MnO = 24.3-25.7), plagioclase (An 12.3Or 6.7 to An27.4Or 2.8), clinopyroxene (Fs7.4Wo43.4 to Fs8.5Wo40.4, FeO/MnO = 15.8-21.7) and metal (mostly kamacite with 5% Ni and bands of taenite with 30% Ni, but heavily altered to limonite) with accessory Al-poor chromite, merrillite and Ni-bearing troilite.  Limonite forms abundant veinlets throughout the sample (W2-3).  This specimen is essentially identical in texture, mineral compositions and degree of alteration to a polished slice of NWA 2353 analyzed concurrently, and it is concluded that these are paired stones.  Both specimens are modally heterogeneous (especially with respect to chromite, clinopyroxene and merrillite), and also with respect to plagioclase composition.  Furthermore. it is likely that both of these stones are paired with NWA 2635Specimens: type specimen, 28.6 g, and one polished thin section, NAU; one polished mount, UWS; 201 g, xHupé; main mass, Strufe

Data from:
  MB89
  Table 7
  Line 481:
Origin or pseudonym:Morocco
Date:2004
Mass (g):678
Pieces:1
Class:Primitive achondrite
Ferrosilite (mol%):Erfoud
Classifier:
Type spec mass (g):28.6
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 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. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Meteorites Australia   
The Hupe Collection   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Achim Sven Faforke      
Anthony James   
Denis gourgues      
eraserhead   
jean bernard Delbauve   
Volker Heinrich   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1502 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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