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Northwest Africa 12414
Basic information Name: Northwest Africa 12414
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12414
Observed fall: No
Year found: 2002
Country: Morocco
Mass:help 103.1 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  L4
Recommended:  L4    [explanation]

This is 1 of 1709 approved meteorites (plus 24 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 14 Jan 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12414 (NWA 12414)

Morocco

Purchased: 2002

Classification: Ordinary chondrite (L4)

History: Purchased with numerous other unclassified NWA samples from Marvin Kilgore in 2002

Physical characteristics: The meteorite is mostly covered by fusion crust and the rest shows weathering.

Petrography: The thin section shows chondrules of different textures and has a lithic fragment one edge.

Geochemistry: Avergae olivine is Fa 25.2.4±1.4 (n= 7); Pyroxene Fs20.7±2.6 Wo1.4 (n=7)

Classification: Ordinary chondrite L4 with a weathering grade of W2, and a shock stage of S2.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Marvin Kilgore
Date:P 2002
Mass (g):103.1
Pieces:1
Class:L4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):25.2
Ferrosilite (mol%):20.7
Wollastonite (mol%):1.4
Classifier:I. Ivanyuk, M. Weisberg, KBCC
Type spec mass (g):89 g
Type spec location:AMNH
Main mass:AMNH
Comments:Submitted by Mike Weisberg
Institutions
   and collections
AMNH: Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West, New York, NY 10024, United States (institutional address; updated 18 May 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
Find references in Google Scholar:
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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