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Northwest Africa 12842
Basic information Name: Northwest Africa 12842
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12842
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 3.57 kg
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  L4
Recommended:  L4    [explanation]

This is 1 of 1715 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 Aug 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12842 (NWA 12842)

Morocco

Purchased: 2018 Feb

Classification: Ordinary chondrite (L4)

Classification: Ten olivine grains were analyzed with compositions ranging from Fo72.0 to 76.2, a mean of Fo73.9 and a standard deviation of 1.2.  Several large chondrules are present (up to ~7 mm), some retaining initial crystallization textures (barred olivine).  However, chondrules have undergone some deformation, are mostly no longer spherical, and no glass is present in chondrule matrix.  This sample is L4 chondrite.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Tucson, AZ
Date:P 2018 Feb
Mass (g):3570
Pieces:1
Class:L4
Fayalite (mol%):26.1±1.2 (n=10)
Classifier:Andrew Beck
Type spec mass (g):51.228
Type spec location:Marietta
Main mass:KD Meteorites (http://www.kdmeteorites.com/index.html)
Comments:Submitted by Andrew Beck
Institutions
   and collections
Marietta: Marietta College Department of Petroleum Engineering and Geology 215 Fifth Street, Marietta, OH 45750, United States; Website (institutional address; updated 31 Aug 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Photos:
CreditPhotos
Public domain photographs:
Andrew Beck      
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1611 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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