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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
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  CV3
MB 113  (2024)  CVred3
Recommended:  CVred3    [explanation]

This is 1 of 50 approved meteorites classified as CVred3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 3 Feb 2018
Revised 28 Mar 2024: Revised class based on metbull text
Writeuphelp
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:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2017
Mass (g):148.9
Pieces:1
Class:CV3
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
Institutions
   and collections		 CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Mike Markowitz   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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