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Northwest Africa 2374
Basic information Name: Northwest Africa 2374
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2374
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 31 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 660 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from MB online:

Northwest Africa 2374

Northwest Africa

Purchased 2004 August

Achondrite (ureilite)

A single stone of 31.5 g was purchased in Erfoud, Morocco. Description and classification (T. Bunch and J. Wittke, NAU): typical ureilite, fine to medium-grained with a high degree of preferred orientation of mafic silicates. High abundance of laminar, interstitial graphite with low abundance of metal (and weathered oxides); graphite to metal ratio = 8:1 (vol. %). Low level of silicate reduction (R2): reduced olivine rims are lightly affected (< 0.02 mm or <10 vol. %), pigeonite only marginally affected. Olivine cores, Fa21.0 (FeO/MnO = 39), Cr2O3 = 0.80 wt. %, rims = Fa12.9. Pigeonite, Fs18.1Wo7.9 (FeO/MnO = 31). Low weathering grade and lightly shocked. Specimens: type specimen, 6.7 g, NAU; main mass, Birdsell.

Data from:
  MB89
  Table 7
  Line 215:
Place of purchase:Erfoud
Date:2004
Mass (g):31
Pieces:1
Class:Ure
Fayalite (mol%):12.9-21.0
Classifier:Ted Bunch, NAU
Type spec mass (g):6.7
Type spec location:NAU
Main mass:Birdsell
Institutions
   and collections		 NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Birdsell: Arizona Skies Meteorites, P.O. Box 2412, Flagstaff, AZ 86003, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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