Meteoritical Bulletin: Entry for Northwest Africa 13195

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Northwest Africa 13195

Basic information

Name: Northwest Africa 13195
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13195
Observed fall: No
Year found: 2000
Country: (Northwest Africa)
Mass: 45.3 g

Classification
history:

Recommended:

L6 [explanation]

This is 1 of 12401 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 13195 (NWA 13195)

(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 45.3 g piece. It has mostly damaged/lost fusion crust. The sample is magnetic.

Petrography (S. Nasir, SQU): Porphyritic olivine pyroxene (POP), Porphyritic olivine (PO) and porphyritic pyroxene (PP) 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 3.603, 3.621; δ¹⁸O 4.819, 4.872; Δ¹⁷O 1.058, 1.049 per mil.

Classification: Ordinary chondrite (L6), W2.

Data from:
  MB109
  Table 0
  Line 0:

Origin or pseudonym:	Sahara
Date:	1999
Mass (g):	45.30
Pieces:	1
Class:	L6
Weathering grade:	W2
Fayalite (mol%):	26.1±0.4 (n=21)
Ferrosilite (mol%):	21.9±0.3 (n=21)
Classifier:	A. Ali, SQU
Type spec mass (g):	45.3
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)

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Photos:

Credit	Photos
Public domain photographs:
Archal Ali

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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