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Northwest Africa 10638
Basic information Name: Northwest Africa 10638
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10638
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 307 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  L6
Recommended:  L6    [explanation]

This is 1 of 11582 approved meteorites (plus 10 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 21 Apr 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10638 (NWA 10638)

Morocco

Purchased: Feb 2016

Classification: Ordinary chondrite (L6)

History: Purchased from Moroccan meteorite dealer in 2016.

Physical characteristics: Physical Characteristics: Single stone; rough, brown, dark exterior. Saw cut reveals a few small chondrules set in a dark-gray matrix.

Petrography: (K. Domanik and F. Stephan, UAz) Microprobe examination of a polished mount shows a few remaining indistinct equilibrated chondrules and ubiquitous patches of plagioclase 50-300 μm in size. Metal mostly oxidized with numerous oxidized veinlets throughout the meteorite.

Geochemistry: Mineral compositions and geochemistry: (K. Domanik and F. Stephan, UAz) Olivine Fa24.8±0.3, Fe/Mn=48.0±3.1, n=15; low-Ca pyroxene Fs21.1±0.2Wo1.5±0.3, Fe/Mn=27.9±2.5 n=11.

Classification: Oridinary Chonrite (L6)

Specimens: 29.4 g including probe mount on deposit at UAz, Reed holds the main mass.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Tucson, AZ
Date:P Feb 2016
Mass (g):306.6
Pieces:1
Class:L6
Fayalite (mol%):24.8±0.3
Ferrosilite (mol%):21.1±0.2
Wollastonite (mol%):Wo1.5±0.3
Classifier:F. Stephan and K. Domanik, UAz
Type spec mass (g):29.4
Type spec location:UAz
Main mass:Blaine Reed
Comments:Submitted by K. Domanik
Institutions
   and collections
UAz: Lunar and Planetary Laboratory, University of Arizona, 1629 E. University Blvd., Tucson, AZ 85721, United States (institutional address; updated 14 Jan 2012)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
Catalogs:
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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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1680 approved meteorites from Morocco (plus 25 unapproved names) (plus 1 impact crater)

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