Meteoritical Bulletin: Entry for Northwest Africa 14234

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Northwest Africa 14234

Basic information

Name: Northwest Africa 14234
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14234
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 278 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	H7
Recommended:			H7 [explanation]

This is 1 of 31 approved meteorites classified as H7. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 31 Oct 2021

Writeup

help

Writeup from MB 110:

Northwest Africa 14234 (NWA 14234)

(Northwest Africa)

Purchased: 2019 Jun

Classification: Ordinary chondrite (H7)

History: The meteorite was purchased from a meteorite dealer in Talsint, Morocco.

Physical characteristics: Two brownish rock without fusion crust. Polished surface shows a brownish mosaic of silicate grains with abundant metal.

Petrography: The meteorite exhibits a recrystallized texture with frequent triple junctions between adjoining minerals. Low-Ca pyroxene and feldspar often poikilitically enclose rounded olivine grains. FeNi metal is abundant. Accessory phases include troilite, low-Ti chromite, and merrillite. Grain boundaries are often decorated by iron oxides. No relict chondrules detected.

Geochemistry: olivine: Fa_17.7±0.1(Fa_17.5-17.9, FeO/MnO=36±2, n=12); low-Ca pyroxene: Fs_16.1±0.1Wo_3.7±0.4(Fs_15.9-16.3Wo_3.2-4.3, FeO/MnO=21±1, n=13); Ca-pyroxene: Fs_8.7±0.3Wo_40.4±0.5(Fs_8.1-9.0Wo_39.9-41.5, FeO/MnO=16±1, n=12); feldspar: An_32.8±0.6Ab_65.8±0.5Or_1.4±0.1, n=12

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Talsint, Morocco
Date:	P 2019 Jun
Mass (g):	277.6
Pieces:	2
Class:	H7
Shock stage:	S1
Weathering grade:	W2
Fayalite (mol%):	17.7
Ferrosilite (mol%):	16.1; 8.7
Wollastonite (mol%):	3.7; 40.4
Classifier:	A. Greshake, MNB
Type spec mass (g):	23.7
Type spec location:	MNB
Main mass:	Noreddine Azelmat
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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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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