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Northwest Africa 2812
Basic information Name: Northwest Africa 2812
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2812
Observed fall: No
Year found: 2003
Country: Morocco
Mass:help 355 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  CR
MetBase:  v. 7.1  (2006)  CR
Recommended:  CR    [explanation]

This is 1 of 14 approved meteorites classified as CR.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites
Writeuphelp
Writeup from MB 89:
Northwest Africa 2812

Region El Mahabas, S of Zag,  Morocco

Found 2003

Carbonaceous chondrite (CR)

A single stone of 355 g was found by Moroccan nomads and sold in Morocco.  Mineralogy and classification (J. Schlüter, Hamburg): Abundant well defined chondrules (n=40: mean 847 μm); coarse grained rims of chondrule minerals; metal-rich porphyritic olivine; amoeboid olivine aggregates.  Olivine (n=45; mean Fa9.56; range Fa0.02-24.36; two peaks at Fa0-2 and Fa9-13).  Orthopyroxene: (n=5, Fs4.62-9.33Wo0.15-1.21); low-Ca clinopyroxene: (n=6, Fs16.98-35.86Wo1.04-5.66, Cr2O3: 0.24-1.04 wt,%, MnO 0.27-0.76 wt.%).  Weathering grade: W3, shock stage: S2. Specimens: type specimen 21.5 g, Mineralogical Museum Hamburg, the main mass is with Horst Burkard, Bonn.

Institutions
   and collections
Burkard: Horst Burkard, Bonn, Germany (private address)
Horst: Burkard Horst, Germany (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1405 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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