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Northwest Africa 11589
Basic information Name: Northwest Africa 11589
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11589
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 148.9 g
Meteoritical Bulletin:  MB 107  (2018)  CV3
Recommended:  CV3    [explanation]

This is 1 of 602 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 3 Feb 2018
Writeup from MB 107:

Northwest Africa 11589 (NWA 11589)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CV3)

Physical characteristics: Dark stone. Cut surface reveals a dark-gray interior with mm-sized chondrules and CAIs.

Petrography: (J. Gattacceca, H. Pourkhorsandi, CEREGE ; Lydie Bonal, IPAG) Chondrules (average apparent diameter 1.1 mm, N=18), mostly of type I, and CAIs set in a fine-grained iron-rich matrix. Main opaque minerals are troilite and metal. Based on the structural order of the polyaromatic matter assessed by Raman spectroscopy, this meteorite appears to be as metamorphosed as Axtell (3.6/3.7). The Raman spectroscopy parameters of interest are  FWHM-D (cm-1)=69.2±4.0, ID/IG=1.41±0.06 (see Bonal et al. 2006, GCA 70:1849-1863, figure 4).

Geochemistry: Olivine Fa10.0±10.5, PMD 68% (N=11). Orthopyroxene Fs1.2±0.4Wo0.9±0.1 (N=2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.91.

Classification: Carbonaceous chondrite (CV3, reduced subgroup). Estimated subtype 3.6/3.7.

Specimens: Type specimen at CEREGE. Main mass with Kuntz.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2017
Mass (g):148.9
Weathering grade:low
Fayalite (mol%):10.0±10.5 (N=11)
Ferrosilite (mol%):1.2±0.4 (N=2)
Wollastonite (mol%):0.9±0.1
Magnetic suscept.:3.91
Classifier:J. Gattacceca, H. Pourkhorsandi, CEREGE
Type spec mass (g):22.64
Type spec location:CEREGE
Main mass:Kuntz
Comments:work name K352; submitted by Jérôme Gattacceca
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Kuntz: Fabien Kuntz, France; Website (private address)
IPAG: Institut de Planétologie et d’Astrophysique de Grenoble 414, Rue de la Piscine Domaine Universitaire 38400 St-Martin d’Hères , France (institutional address; updated 1 Aug 2013)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Mike Markowitz   

     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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