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Northwest Africa 2236
Basic information Name: Northwest Africa 2236
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2236
Observed fall: No
Year found: 1999
Country: (Northwest Africa)
Mass:help 29.8 g
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 649 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from MB 88:

Northwest Africa 2236

South East Morocco

Found 1999

Achondrite (Ureilite)

A 29.8 g stone was found by an anonymous person. Classification (H. Takeda, Chiba, A. Yamaguchi NIPR): It is composed of medium to coarse (1-2 mm), olivine (Fo of cores, 97) and small orthopyroxene grains (Wo4.8Fo92.3Fs3.0).  Minor twinned diopside grains (Wo38Fo60Fs2) are present.  Carbonaceous matter occurs as narrower, intergranular veins than common ureilites.  A few olivine crystals grow larger (up to ca. 3 mm) than average grains alone one direction. Shock stage S1, weathering grade W1. Specimens: type specimen, 5.9 g and thin section, NIPR, main mass Fectay.

Data from:
  MB88
  Table 4
  Line 163:
Origin or pseudonym:SE Morocco
Date:1999
Mass (g):29.8
Pieces:1
Class:Ureilite
Type spec mass (g):5.9
Institutions
   and collections		 NIPR: Antarctic Meteorite Research Center, National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; Website (institutional address; updated 9 Dec 2013)
Chiba: Chiba Institute of Technology, Tsudanuma, Narashino, Chiba 275-0016, Japan (institutional address)
Fectay: Bruno Fectay and Carine Bidaut, La Memoire de la Terre SARL, 39800 Aumont, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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