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Northwest Africa 11838
Basic information Name: Northwest Africa 11838
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11838
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 2.49 kg
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2852 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 7 Jun 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11838 (NWA 11838)

(Northwest Africa)

Find: 2017

Classification: Ordinary chondrite (LL6)

History: Purchased by Daniel Sheikh in 2018

Petrography: (F. Sheikh, UFla) Chondrules almost absent (800±50 μm, N=3). Fine-grained matrix containing low amounts of metal. Scattered shock melt veins containing FeS and FeO.

Geochemistry: Olivine, Fa25.2-47.6, mean Fa31.1±0.7, N=54; orthopyroxene, Fs22.5-38.6Wo 2.4-6.6, mean Fs27.7±0.6Wo3.2±0.8, N=51.

Classification: Ordinary Chondrite (LL6).

Specimens: 455.88 g at UCLA; main mass with Daniel Sheikh.

Data from:
  MB107
  Table 0
  Line 0:
Date:2017
Mass (g):2489
Pieces:1
Class:LL6
Shock stage:S3
Weathering grade:W4
Fayalite (mol%):31.1±0.7 (N=54)
Ferrosilite (mol%):27.7±0.6 (N=53)
Wollastonite (mol%):3.2±0.8 (N=51)
Classifier:D. Sheikh, UFla
Type spec mass (g):455.88
Type spec location:UCLA
Main mass:Daniel Sheikh
Comments:Submitted by Daniel Sheikh
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
UFla: 1843 Stadium Road Gainesville, FL 32611 , United States (institutional address; updated 2 Aug 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
Daniel Sheikh         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8390 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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