Meteoritical Bulletin: Entry for Northwest Africa 14809

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Northwest Africa 14809

Basic information

Name: Northwest Africa 14809
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14809
Observed fall: No
Year found: 2021
Country: Algeria
Mass: 31 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	CK5
Recommended:			CK5 [explanation]

This is 1 of 217 approved meteorites classified as CK5. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Comments:

Approved 8 May 2022

Writeup

Writeup from MB 111:

Northwest Africa 14809 (NWA 14809)

Algeria

Purchased: 2021

Classification: Carbonaceous chondrite (CK5)

History: Found in Algeria. Bought by Jean Redelsperger from Mohamed Elguirah in 2021.

Physical characteristics: Dark fragments.

Petrography: (J. Gattacceca, CEREGE) Chondrule with average apparent diameter about 800 µm set in a recrystallized matrix (grain size 15 µm). Olivine is the dominant mineral. Magnetite and sulfide are abundant in the matrix and chondrules, sometimes as composite spherical grains up to 200 µm.

Geochemistry: Olivine Fa_33.3±0.4, NiO 0.48±0.27 wt% (n=5). Ca-pyroxene Fs_7.0Wo_49.6(n=1). Plagioclase An_22.9Ab_73.1Or_4.0(n=2). Magnetite Cr₂O₃ 3.26 wt% (n=2).

Classification: Carbonaceous chondrite (CK5).

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2021
Mass (g):	31
Pieces:	several
Class:	CK5
Weathering grade:	low
Fayalite (mol%):	33.3±0.4 (n=5)
Magnetic suscept.:	4.55
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	6.2
Type spec location:	CEREGE
Main mass:	Jean Redelsperger
Finder:	anonymous
Comments:	work name JR112; 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)

Catalogs:

References:

Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?

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Geography:

Algeria

Coordinates:

Unknown.

Statistics:
This is 1 of 1358 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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