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Northwest Africa 8689
Basic information Name: Northwest Africa 8689
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8689
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 106 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  L3
Recommended:  L3    [explanation]

This is 1 of 642 approved meteorites classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 28 Dec 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8689 (NWA 8689)

(Northwest Africa)

Purchased: 2014 June 21

Classification: Ordinary chondrite (L3)

History: The stone was bought by R. Lenssen in June 2014 in Ensisheim, France.

Physical characteristics: A single round crusted stone. Cut surface reveals closely packed, well delineated chondrules in a light brown matrix.

Petrography: Well delineated chondrules set in a partially recrystallized matrix. Chondrule average apparent diameter 730±370 μm (N=39). Chondrule mesostasis is devitrified. Olivines are zoned.

Geochemistry: Olivine Fa23.5±7.8 (Fa6.4-32.2, PMD 29%, N=15). Low-Ca pyroxene Fs16.8±8.9Wo1.1±1.2 (Fs1.3-32.3, PMD=49, n=19). Cr2O3 in ferroan olivine 0.21±0.31 wt% (N=15)

Classification: L group from chondrule size and magnetic susceptibility (interpreted in the light of weathering grade).

Specimens: 32 g at CEREGE. Main mass with R. Lenssen

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Ensisheim
Date:P 2014 June 21
Mass (g):106
Pieces:1
Class:L3
Weathering grade:W4
Fayalite (mol%):23.5±7.8 (N=15)
Ferrosilite (mol%):16.8±8.9 (N=19)
Wollastonite (mol%):1.1±1.2
Magnetic suscept.:3.83
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):32
Type spec location:CEREGE
Main mass:R. Lenssen
Comments:Submitted by J. 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 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6506 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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