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Northwest Africa 11590
Basic information Name: Northwest Africa 11590
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11590
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 105.5 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 292 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 16 Jan 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11590 (NWA 11590)

(Northwest Africa)

Purchased: 2017

Classification: Ordinary chondrite (LL3)

Physical characteristics: Brownish stone. Cut surface reveals a brownish interior with packed, well-defined, mm-sized chondrules, and cm-sized darker clasts with smooth contours.

Petrography: (J. Gattacceca, H. Pourkhorsandi, CEREGE) Packed chondrules with average size 850 μm (N=24). Contains cm-sized clasts with very closely packed and indented chondrules, and abundant compound chondrules ("cluster chondrite" texture as defined by Metzler 2012, MAPS 47:2193-2217). These clasts are more weathered than the host lithology (W5 against W4).

Geochemistry: Olivine Fa14.2±8.8, range Fa4.0-26.6, PMD 57% (N=9), Cr2O3 in ferroan olivine 0.14±0.14 wt% (N=9). Orthopyroxene Fs13.4±8.4Wo0.9±0.7, Fs PMD 50% (N=10).

Classification: LL3. Contains cm-sized "cluster chondrite" LL3 clasts.

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

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Ensisheim
Date:P 2017
Mass (g):105.5
Pieces:1
Class:LL3
Weathering grade:W4
Fayalite (mol%):14.2±8.8 (N=9)
Ferrosilite (mol%):13.4±8.4 (N=10)
Wollastonite (mol%):0.9±0.7
Classifier:J. Gattacceca, H. Pourkhorsandi, CEREGE
Type spec mass (g):20.49
Type spec location:CEREGE
Main mass:Kuntz
Comments:work name K366; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Europole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 5 Apr 2018)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6423 approved meteorites from (Northwest Africa) (plus 2023 unapproved names)

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