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Northwest Africa 10500
Basic information Name: Northwest Africa 10500
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10500
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 271 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  LL4-5
Recommended:  LL4-5    [explanation]

This is 1 of 14 approved meteorites classified as LL4-5.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 8 Jan 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10500 (NWA 10500)

(Northwest Africa)

Purchased: 2015 May

Classification: Ordinary chondrite (LL4-5)

History: Purchased by Pierre-Marie Pelé in May 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Matrix-poor breccia composed of equilibrated type 4 and type 5 clasts. Some well-formed chondrules have apparent diameter up to 1.9 mm.

Geochemistry: Olivine (Fa30.3-30.5, N = 3), orthopyroxene (Fs22.3-22.6Wo2.6-2.4, N = 3), clinopyroxene (Fs10.1-10.4Wo43.7-43.4, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.55.

Classification: Ordinary chondrite (LL4-5 breccia).

Specimens: 26.43 g including one polished thin section at PSF; remainder with Mr. P. Pelé.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015 May
Mass (g):271.24
Pieces:1
Class:LL4-5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):30.3-30.5
Ferrosilite (mol%):22.3-22.6
Wollastonite (mol%):2.6-2.4
Magnetic suscept.:3.55
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):26.43
Type spec location:PSF
Main mass:P. Pelé
Comments:PMP15-2; submitted by A. Irving
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6759 approved meteorites from (Northwest Africa) (plus 2047 unapproved names)

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