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Northwest Africa 6433
Basic information Name: Northwest Africa 6433
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6433
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 786 g
Meteoritical Bulletin:  MB 104  (2015)  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 17 Nov 2015
Writeup from MB 104:

Northwest Africa 6433 (NWA 6433)

(Northwest Africa)

Purchased: 2007 Oct

Classification: Ordinary chondrite (LL3)

History: Purchased by Blaine Reed in October 2007 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Very fresh, unequilibrated specimen composed of small to medium sized chondrules (0.5-2.1 mm) in a finer matrix. Minerals are olivine, orthopyroxene, subcalcic augite, pigeonite, sodic plagioclase, chromite, altered kamacite and troilite.

Geochemistry: Olivine (Fa1.3-40.2; Cr2O3 in ferroan olivine = 0.08±0.02 wt.%), orthopyroxene (Fs1.0-21.9Wo0.5-0.6), subcalcic augite (Fs1.3Wo29.4), pigeonite (Fs23.0Wo17.6). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.29.

Classification: Ordinary chondrite (LL3). LL group designation based on magnetic susceptibility.

Specimens: Type specimen plus one polished thick section are at PSF; main mass with Reed.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2007 Oct
Mass (g):786
Shock stage:S2
Weathering grade:W0/1
Fayalite (mol%):1.3-40.2
Ferrosilite (mol%):1.0-21.9
Wollastonite (mol%):0.5-0.6
Magnetic suscept.:4.29
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.8
Type spec location:PSF
Main mass:B. Reed
Comments:21855; submitted by P. Sipiera
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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