Meteoritical Bulletin: Entry for Northwest Africa 12414

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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: 103.1 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	L4
Recommended:			L4 [explanation]

This is 1 of 2062 approved meteorites (plus 5 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

Writeup

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 Fs_20.7±2.6Wo_1.4(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:
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Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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