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Northwest Africa 2112
Basic information Name: Northwest Africa 2112
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2112
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 67 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Eucrite
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 471 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from MB online:

Northwest Africa 2112

Northwest Africa

Found 2003

Achondrite (eucrite)

A 67 g partial stone with fresh fusion crust was purchased in Erfoud, Morocco, 2004 April. Description and classification (T. Bunch and J. Wittke, NAU): highly crushed monomict, granular to subophitic eucrite breccia; mm-sized (up to 2.4 mm) orthopyroxene and plagioclase both of which show prominent twinning; orthopyroxene also contains thin exsolution lamellae of Ca-rich pyroxene. Orthopyroxene, Fs46.5Wo2.8; augite, F26Wo34.2; plagioclase, An91, chromite, cr# = 81.2 and mg# = 23.4; metal, Ni = 0.56 wt. %, and minor ilmenite. Shock level is moderate with very thin melt veins that transgress the entire surface of a 5 cm long slice; limited maskelynite development. No apparent internal weathering. Specimens: type sample, 14.4 g NAU; main mass, Strufe.

Data from:
  MB89
  Table 7
  Line 94:
Place of purchase:Erfoud
Date:2003
Mass (g):67
Pieces:1
Class:Euc
Shock stage:S2
Weathering grade:W1
Ferrosilite (mol%):46.5
Classifier:Ted Bunch, NAU
Type spec mass (g):14.4
Type spec location:NAU
Main mass:Strufe
Comments:Augite Fs26Wo34.2; Plag An91
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Dirk Hohmann   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7354 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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