Meteoritical Bulletin: Entry for Northwest Africa 14796

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Northwest Africa 14796

Basic information

Name: Northwest Africa 14796
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14796
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 129.2 g

Classification
history:

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

This is 1 of 451 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 8 May 2022

Writeup

help

Writeup from MB 111:

Northwest Africa 14796 (NWA 14796)

(Northwest Africa)

Purchased: 27 Oct 2014

Classification: HED achondrite (Howardite)

History: Purchased from a Moroccan dealer at the Munich Mineral Show, Germany

Physical characteristics: Light to dark grayish individual mainly without fusion crust. Cut face reveals light-gray, brecciated, interior with larger mineral and lithic clasts up to 5 mm. Common metal inclusions. Magnetic susceptibility, measured on two fragments is log χ (× 10^-9 m³/kg) = 4.48 and log χ (× 10^-9 m³/kg) = 4.18, with an average 4.33.

Petrography: Lithic and mineral clasts (up to several mm) set in clastic matrix. Main minerals are low-Ca pyroxene, plagioclase. Minor and accessory minerals include kamacite (5 vol%), ilmenite, chromite, troilite.

Geochemistry: Low-Ca pyroxene: diogenitic Fs_28.5±4.1Wo_2.8±1.6(n=38), eucritic Fs_47.4±5.9Wo_5.9±2.3(n=5), overall FeO/MnO=32.9±7.4 (n=43). Plagioclase An_89.6±5.0Ab_10.1±4.7Or_0.3±0.3(n=16), range An_78.7-96.3.

Classification: Achondrite (howardite). Diogenite material, mainly as lithic clasts, makes up about 30 vol% of the meteorite.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Munich
Date:	P 27 Oct 2014
Mass (g):	129.2
Pieces:	1
Class:	Howardite
Shock stage:	S2
Weathering grade:	W2
Magnetic suscept.:	4.33
Classifier:	K. Klemm, M. Patzek, ifP
Type spec mass (g):	23.5
Type spec location:	IfP
Main mass:	Andreas Koppelt
Comments:	Working name K1415; submitted by Klemm K.

Institutions
and collections

IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)

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:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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