Meteoritical Bulletin: Entry for Northwest Africa 14411

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Northwest Africa 14411

Basic information

Name: Northwest Africa 14411
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14411
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 780 g

Classification
history:

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

This is 1 of 87 approved meteorites classified as Winonaite. [show all]
Search for other: Primitive achondrites, Winonaites

Comments:

Approved 15 Dec 2021

Writeup

help

Writeup from MB 110:

Northwest Africa 14411 (NWA 14411)

(Northwest Africa)

Purchased: 2020

Classification: Primitive achondrite (Winonaite)

History: The meteorite was purchased from a dealer in Algeria.

Physical characteristics: Two dark brownish fragments without fusion crust.

Petrography: The meteorite displays a fine-grained recrystallized texture with frequent 120 degree triple junctions. It is predominantly composed of typically 50 to 300 µm sized low-Ca pyroxene, forsteritic olivine, Ca-pyroxene, and less abundant sodic feldspar grains. Kamacite, taenite, and troilite are mostly finely dispersed throughout the meteorite. Some metal veins are present. The meteorite contains minor apatite.

Geochemistry: olivine: Fa_3.9±0.1(Fa_3.7-3.9FeO/MnO=17±1, n=5); low-Ca pyroxene: Fs_4.8±0.2Wo_1.9±0.1(Fs_4.6-5.0Wo_1.8-2.0, FeO/MnO=13±2, n=5); Ca-pyroxene: Fs_1.6±0.2Wo_45.3±0.3(Fs_1.4-1.9Wo_44.9-45.5, FeO/MnO=12±3, n=5); feldspar: An_23.0±1.0Ab_74.5±0.9Or_2.5±0.2, n=5

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Algeria
Date:	P 2020
Mass (g):	780
Pieces:	2
Class:	Winonaite
Shock stage:	S1
Weathering grade:	low
Fayalite (mol%):	3.9
Ferrosilite (mol%):	4.8; 1.6
Wollastonite (mol%):	1.9; 45.3
Magnetic suscept.:	4.87
Classifier:	A. Greshake, MNB
Type spec mass (g):	20.4
Type spec location:	MNB
Main mass:	Mateusz Szyszka
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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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
MS

Geography:

Coordinates:

Unknown.

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

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Revision
history:

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