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Northwest Africa 2639
Basic information Name: Northwest Africa 2639
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2639
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 539 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Mesosiderite
MetBase:  v. 7.1  (2006)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 189 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Writeuphelp
Writeup from MB 89:

Northwest Africa 2639

Northwest Africa

Purchased 2004

Mesosiderite

Three complete stones weighing 539 g in total with black to brown surfaces, were purchased in Erfoud, Morocco. Description and classification (T. Bunch and J. Wittke, NAU): mesosiderite with nearly equal portions of metal and silicates; metal composed of mostly continuous aggregates of metal balls (0.2-0.4 mm diameter) that resemble grape clusters and enclose clumps of silicates. Orthopyroxene, Fs23.1-25.5Wo1.7-3.3 (FeO/MnO = 23.5-27.9); plagioclase, An88.9; chromite, cr# = 82; metal, Ni = 6.1-7.0 wt. %, merrillite and troilite. Shock level moderate and a weathering grade of W1. Specimens: type specimen, 21.1 g, NAU; main mass, A. Hupe.

Data from:
  MB89
  Table 7
  Line 349:
Place of purchase:Erfoud
Date:2004
Mass (g):539
Pieces:3
Class:Mes
Classifier:Ted Bunch, NAU
Type spec mass (g):21.1
Type spec location:NAU
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Hupe: (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:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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