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Northwest Africa 6236
Basic information Name: Northwest Africa 6236
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6236
Observed fall: No
Year found: 2005
Country: Morocco
Mass:help 145 g
Meteoritical Bulletin:  MB 98  (2010)  R4
Recommended:  R4    [explanation]

This is 1 of 69 approved meteorites classified as R4.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)
Comments: Approved 21 May 2010
Revised 28 May 2010: Changed official name by vote of NomCom
Writeup from MB online:

Northwest Africa 6236        30°58.29’N, 4°56.99’W

Fezzou Village, Morocco

Found: 4 Oct 2005

Classification: Rumuruti chondrite (R4)

History: The finder and collector of both meteorites Northwest Africa 6235 and Northwest Africa 6236, originally called Fezzou (a) and Fezzou (b), respectively, is Mr. Mosudiqu Aziz, who is a Moroccan shepherd and living in Alnif, Morocco. Mr. Ichiro Katagi, who is a dealer of rocks and meteorites, purchased them from Mr. Mosudiqu Aziz at Alnif. The submitter, Sawada, bought them from Mr. Katagi at the Mineral Tokyo Show in Tokyo, Japan.

Geochemistry: Ca-rich pyroxene (Fs8.3-20.5Wo34.0-46.5); C (0.22 wt%). Carbon and sulfur isotopes analysis (D. Dettman, UAz): δ13C -15.11±0.11 per mil (vs. PDB), δ34S: 0.6±0.15 per mil (vs. CDT). Oxygen isotope analysis (K. Nagao, UTok; M. Kusakabe, UToy; I. Ahn and J. I. Lee, KOPRI): δ17O : 5.53 ± 0.08 per mil (vs. SMOW); δ18O : 4.70 ± 0.07 per mil (vs. SMOW).

Classification: Petrologic type is estimated around 4 on the basis of TL and Fa content.

Data from:
  Table 1
  Line 52:
State/Prov/County:Fezzou Village
Date:4 Oct 2005
Mass (g):145
Fayalite (mol%):36.0-41.6
Ferrosilite (mol%):14.5-30.5
Wollastonite (mol%):0.31-9.7
Classifier:Y. Sawada, ShiU; T. Endo, H. Nishido, OkaU; K. Nagao, UTok; M. Kusakabe, UToy; I. Ahn and J. I. Lee, KOPRI.
Type spec mass (g):23.93
Type spec location:NSMT
Main mass:Sawada
Finder:Mosudiqu Aziz
Comments:Submitted by Sawada
Plots: O isotopes:  
   and collections
UAz: Lunar and Planetary Laboratory, University of Arizona, 1629 E. University Blvd., Tucson, AZ 85721, United States (institutional address; updated 14 Jan 2012)
UTok: University Museum, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan (institutional address; updated 3 Oct 2021)
KOPRI: Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, Korea, 406-840, South Korea; Website (institutional address; updated 20 Dec 2014)
OkaU: Institute for Study of the Earth's Interior, Okayama University, Misasa Tottori 682-0193, Japan (institutional address)
ShiU: Department of Geoscience, Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsu-cho, Matsue, 690-8504, Japan (institutional address; updated 21 May 2010)
UToy: Department of Environmental Biology and Chemistry The University of Toyama, Gofuku 3190, Toyama-shi, 930-8555, Japan (institutional address; updated 21 May 2010)
NSMT: National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, JAPAN, Japan; Website (institutional address; updated 16 Jun 2014)
References: Published in Meteoritical Bulletin, no. 98, MAPS 45, 1530-1551 (2010)
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     Recommended::   (30° 58' 17"N, 4° 56' 59"W)

     This is 1 of 62 approved meteorites from Meknès-Tafilalet, Morocco
     This is 1 of 2089 approved meteorites from Morocco (plus 32 unapproved names) (plus 1 impact crater)
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Synonymshelp: Fezzou (b) (Renamed NWA by action of nomcom 5/28/10)

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