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Northwest Africa 10980
Basic information Name: Northwest Africa 10980
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10980
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 429 g
Meteoritical Bulletin:  MB 105  (2016)  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 Nov 2016
Writeup from MB 105:

Northwest Africa 10980 (NWA 10980)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (LL3)

History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005 and subsequently acquired by the Hollis Collection.

Petrography: (A. Irving and S. Kuehner, UWS) Unequilibrated with highly magnesian cores in olivine and orthopyroxene. Well-formed, fairly closely packed chondrules (apparent diameter 500-400 μm) are set in a finer matrix containing stained metal and minor chlorapatite.

Geochemistry: Olivine (Fa0.7-29.9, Cr2O3 in ferroan examples 0.02-0.13 wt.%, mean 0.06±0.04 wt.%, N = 7), orthopyroxene (Fs1.9-22.7Wo0.5-1.8, N = 3), pigeonite (Fs19.1Wo12.6), subcalcic augite (Fs15.2Wo33.0, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.41.

Classification: Ordinary chondrite (LL3).

Specimens: The entire sepcimen including one polished thin section is at PSF.

Data from:
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2005
Mass (g):429
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.7-29.9
Ferrosilite (mol%):1.9-22.7
Wollastonite (mol%):0.5-1.8
Magnetic suscept.:4.41
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):429
Type spec location:PSF
Main mass:PSF
Comments:CHC16019; submitted by A. Irving
   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)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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