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Northwest Africa 1836
Basic information Name: Northwest Africa 1836
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1836
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 1102 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Eucrite
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 560 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 1836

Morocco

Found 2002

Achondrite (monomict eucrite)

A 1102 g partially crusted, single stone was purchased in Rissani, Morocco in 2003. Classification and mineralogy (T. Bunch and J. Wittke, NAU): highly contorted mass of eucrite clasts with cataclastic mantles that are in turn covered by partially melted to recrystallized masses. Cumulate texture with subophitic enclaves. Clast orthopyroxene, Fs56.4–59Wo2.5–4; exsolution lamellae, Fs43.4-46.3Wo23-25.6; recrystallized zone, Fs54.5–57.5Wo8.4–13.5. Chromite, Cr/(Cr+Al) = 0.85, TiO2 = 14.6 wt. % with exsolution lamellae of ilmenite; plagioclase, An91–93.6. Shock level, S1 to S5. The meteorite is very fresh. Specimens, 25.5 g, NAU; main mass, Oakes.

Data from:
  MB89
  Table 7
  Line 25:
Place of purchase:Morocco
Date:2002
Mass (g):1102
Pieces:1
Class:Euc
Weathering grade:W0
Ferrosilite (mol%):56.4-59
Type spec mass (g):25.5
Comments:Plag An91-93.6; Undefined note. NAU is Northern Arizona University, Flagstaff, AZ 86011, USA
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Oakes: Nelson Oakes, Route 1, House 50C, Uniondale, PA 18470, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Meteorites Australia   
Shinishi Kato   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
AJS Cosmic Treasures Photo added 19 Apr 2022
Photo added 19 Apr 2022
Andreas Grünemeyer Photo added 19 Apr 2022
Jay Piatek   
Jean-Michel Masson Photo added 19 Apr 2022
Mirko Graul Photo added 19 Apr 2022
Photo added 19 Apr 2022
Photo added 19 Apr 2022
Woreczko Jan & Wadi   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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