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Northwest Africa 10018
Basic information Name: Northwest Africa 10018
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10018
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 199.3 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L5
Recommended:  L5    [explanation]

This is 1 of 8890 approved meteorites (plus 5 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10018 (NWA 10018)

Northwest Africa

Purchased: 2010

Classification: Ordinary chondrite (L5)

History: One stone weighing 199.3 g was found in Morocco in 2010. David Holden acquired the sample from a meteorite prospector in Erfoud 2010.

Physical characteristics: The rounded to angular-shaped stone has a smooth, weathered, brown fusion crust that covers approximately 75% of the exterior of the stone. The surface displays numerous shallow regmaglypts. The cut face of the interior of the stone is tan with mottle orange regions and displays small chondrules, chondrule fragments and fresh and weathered flakes of metal.

Petrography: Description and classification (A. Love, App): Sample displays chondritic texture composed of numerous defined, relict chondrules (avg. diameter of 882 μm) and fragments and melt clasts set in a recrystallized matrix with irregularly shaped FeNi and FeS metal grains. Chondrules have turbid to recrystallized mesostasis.

Geochemistry: (A. Love, App) Olivine Fa25.8±0.3, N=14; Low Ca pyroxene Fs20.8±0.2Wo2.4±0.3, N=12

Classification: Ordinary chondrite (L5, S3, W2)

Specimens: An endcut and one slice weighing 21.87 g, and a polished thin section are currently on deposit at App.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2010
Mass (g):199.3
Pieces:1
Class:L5
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):25.8±0.3 (N=14)
Ferrosilite (mol%):20.8±0.2 (N=12)
Wollastonite (mol%):2.4±0.3
Classifier:A. Love, App
Type spec mass (g):21.87
Type spec location:App
Main mass:David Holden
Finder:Anonymous
Comments:Submitted by Anthony Love
Institutions
   and collections		 App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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