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Northwest Africa 8484
Basic information Name: Northwest Africa 8484
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8484
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 83.1 g
Meteoritical Bulletin:  MB 103  (2014)  LL3
Recommended:  LL3    [explanation]

This is 1 of 371 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 26 Jul 2014
Writeup from MB 103:

Northwest Africa 8484 (NWA 8484)

(Northwest Africa)

Purchased: 2014

Classification: Ordinary chondrite (LL3)

History: Purchased in Morocco in 2014.

Physical characteristics: A single stone with a grayish desert varnish. Cut surface reveals closely packed grayish and reddish chondrules up to 5 mm.

Petrography: (C. Cournède and J. Gattacceca, CEREGE) Closely packed chondrules. Chondrule mean apparent size 0.79±0.57 mm (N=40). Zoned olivines and pyroxenes.

Geochemistry: Olivine Fa16.4±11.0 (PMD=56%, n=24, range 0.6-41.8). Orthopyroxene Fs9.2±5.5Wo1.1±0.8 (PMD=51%, n=9, range Fs3.0-18.0). Cr2O3 in ferroan olivines 0.09±0.08 wt.% (n=22). Magnetic susceptibility log χ = 3.82 (χ in 10-9 m3/kg).

Classification: LL3. LL classification based on magnetic susceptibility and chondrule size. Estimated sub-type between 3.2 and 3.5 based on Fa scatter and Cr2O3 content of olivine.

Specimens: 17 g and a polished section in CEREGE. Main mass with Pierre-Marie Pelé

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2014
Mass (g):83.1
Weathering grade:W3
Fayalite (mol%):16.4±11 (PMD=56%, N=24)
Ferrosilite (mol%):9.2±5.4 (PMD=51%, N=9)
Wollastonite (mol%):1.1±0.8
Magnetic suscept.:3.82
Classifier:C. Cournède, J. Gattacceca, CEREGE
Type spec mass (g):17
Type spec location:CEREGE
Main mass:Pierre-Marie Pelé
Comments:Submitted by J. 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)
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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