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Northwest Africa 1665
Basic information Name: Northwest Africa 1665
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1665
Observed fall: No
Year found: 2002
Country: Morocco
Mass:help 1185 g
Meteoritical Bulletin:  MB 89  (2005)  CK3-an
MetBase:  v. 7.1  (2006)  CK3-an
Recommended:  CK3-an    [explanation]

This is 1 of 3 approved meteorites classified as CK3-an.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites
Writeup from MB 89:

Northwest Africa 1665

Northwest Africa

Found 2002

Carbonaceous chondrite (CK3 anomalous)

A single stone of 1185 g covered by fusion crust was found in 2002 by an anonymous finder in the Occidental Saharan desert. Classification and mineralogy (A. Greshake and M. Kurz): it is a type 3 carbonaceous chondrite with chondrules, irregular shaped olivine-rich objects, and mineral fragments set into a fine-grained matrix of Fe-rich olivine, Ca-pyroxene, troilite, and FeNi-metal; chondrules have a mean diameter of 130 µm and porphyritic olivine and pyroxene chondrules clearly dominate over radiating or cryptocrystalline types; matrix abundance is about 50 vol%; olivine, Fa25.7 (range Fa0.7-37.6); pyroxene, Fs12 (range Fs2.5-48.3); oxygen isotopic compositions (R. Clayton and T. Mayeda, UChi): δ18O = -1.03‰, δ17O = -4.95‰ and (I. Franchi and R. C. Greenwood, OU): δ18O = -1.88‰, δ17O = -5.43‰, Δ17O = -4.45‰ are clear of the CO3 chondrite field and possibly located on an extension of the CK3 range; shock stage, S1; weathering grade, W2. Specimens: Main mass with anonymous finder; type specimen 22 g plus one polished thin section MNB.

Data from:
  Table 7
  Line 19:
Origin or pseudonym:Morocco
Mass (g):1185
Class:CK3 anomalous
Classifier:A. Greshake, MNB and M. Kurz
Type spec mass (g):22
Plots: O isotopes:  
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
UChi: University of Chicago, Chicago, IL 60637, United States (institutional address; updated 28 Feb 2011)
Kurz: M. Kurz, Schillerstrasse 7, D-34626 Neukirchen, Germany (private address)
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos from the Encyclopedia of Meteorites:
Don Edwards   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)


     This is 1 of 2046 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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