Meteoritical Bulletin: Entry for Northwest Africa 15822

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Northwest Africa 15822

Basic information

Name: Northwest Africa 15822
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15822
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 47.2 g

Classification
history:

Meteoritical Bulletin:	MB 112	(2024)	Iron, IIF
Recommended:			Iron, IIF [explanation]

This is 1 of 8 approved meteorites classified as Iron, IIF. [show all]
Search for other: IIF irons, Iron meteorites, and Metal-rich meteorites

Comments:

Approved 21 Oct 2023

Writeup

Writeup from MB 112:

Northwest Africa 15822 (NWA 15822)

(Northwest Africa)

Purchased: 2022 Mar

Classification: Iron meteorite (IIF)

Petrography: (J. Gattacceca, CEREGE) Iron meteorite mostly made of pointed kamacite spindles 10 µm wide and 100 µm long organized in Widmanstätten pattern, and black plessite. Euhedral sulfides with 30 µm grain size are present.

Geochemistry: Composition: Ni 13.2 wt%, Co 6.90 mg/g (XRF analyses). Trace elements (ICP-MS, V. Debaille, ULB) Ga 10.1 µg/g, As 2.56 µg/g, Ir 7.38 µg/g, Au 0.70 µg/g, Cu 320.7 µg/g, Cr 23.7 µg/g. Ge was not measured.

Classification: Iron meteorite (IIF). Plessitic octahedrite structure.

Specimens: Type specimen at CEREGE, main mass with Kuntz.

Data from:
  MB112
  Table 0
  Line 0:

Place of purchase:	Rissani, Morocco
Date:	P 2022 Mar
Mass (g):	47.24
Pieces:	1
Class:	Iron, IIF
Weathering grade:	low
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	10.7
Type spec location:	CEREGE
Main mass:	Kuntz
Finder:	anonymous
Comments:	work name K554; submitted by Jérôme Gattacceca

Institutions
and collections

CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Kuntz: Fabien Kuntz, France; Website (private address)
ULB: Université libre de Bruxelles Avenue Franklin Roosevelt 50 - 1050 Bruxelles, Belgium (institutional address; updated 27 Sep 2018)

Catalogs:

References:

Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Cartier C., Consolmagno G., Goodrich C., Greshake A., Gross J., Joy K. H., Miao B. and Zhang B. (2024) The Meteoritical Bulletin, no. 112. Meteoritics & Planetary Science 59, 1820–1823. ?

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Photos:

Credit	Photos
Public domain photographs:
Jerome Gattacceca

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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