Meteoritical Bulletin: Entry for Northwest Africa 13196

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Northwest Africa 13196

Basic information

Name: Northwest Africa 13196
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13196
Observed fall: No
Year found: 2000
Country: (Northwest Africa)
Mass: 57.3 g

Classification
history:

Recommended:

L6 [explanation]

This is 1 of 12485 approved meteorites (plus 8 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 12 Feb 2020

Writeup

Writeup from MB 109:

Northwest Africa 13196 (NWA 13196)

(Northwest Africa)

Find: 1999

Classification: Ordinary chondrite (L6)

History: Iffat Jabeen is the owner of this meteorite who bought it from Michael I. Casper, Meteorites, Inc. in March 2000

Physical characteristics: A 57.3 g piece. It has a altered fusion crust on one side and remaglypts on the other. Generally, the fusion crust is thin and dark to light brown in color. The sample is magnetic.

Petrography (S. Nasir, SQU): Porphyritic olivine pyroxene (POP) and barred olivine (BO) chondrules are poorly defined. Oxidization is prevalent throughout the thin section causing an overall orange hue.

Geochemistry: N. K. Kim, C. Park and J. I. Lee, KOPRI) Duplicate oxygen isotope analysis of untreated bulk materials (grains) by laser-assisted fluorination provided, respectively, δ¹⁷O 3.740, 3.916; δ¹⁸O 5.059, 5.338; Δ¹⁷O 1.069, 1.098 per mil.

Classification: Ordinary chondrite (L6), W2.

Data from:
  MB109
  Table 0
  Line 0:

Origin or pseudonym:	Sahara
Date:	1999
Mass (g):	57.30
Pieces:	1
Class:	L6
Weathering grade:	W2
Fayalite (mol%):	26.2±0.5 (n=21)
Ferrosilite (mol%):	22.3±0.6 (n=20)
Classifier:	A. Ali, SQU
Type spec mass (g):	57.3
Type spec location:	SQU
Main mass:	SQU
Comments:	Submitted by Arshad Ali

Plots:

O isotopes:

Institutions
and collections

SQU: Sultan Qaboos University, College of Science, Earth Sciences Department, P.O. Box 36 Code 123 AlKhoud, Oman (institutional address; updated 5 Oct 2014)
Casper: Michael I. Casper, Meteorites, Inc., P.O. Drawer J, Ithaca, NY 14851, United States; Website (private address)
KOPRI: Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, Korea, 406-840, South Korea; Website (institutional address; updated 20 Dec 2014)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

Find references in NASA ADS:
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Photos:

Credit	Photos
Public domain photographs:
Archal Ali

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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