Meteoritical Bulletin: Entry for Northwest Africa 14256

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Northwest Africa 14256

Basic information

Name: Northwest Africa 14256
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14256
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass: 209 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	Eucrite-melt breccia
Recommended:			Eucrite-melt breccia [explanation]

This is 1 of 106 approved meteorites classified as Eucrite-melt breccia. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 6 Oct 2021

Writeup

Writeup from MB 110:

Northwest Africa 14256 (NWA 14256)

(Northwest Africa)

Find: 2017

Classification: HED achondrite (Eucrite, melt breccia)

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with partially molten subophitic clasts (grain size ~200 µm) set in a melt rock matrix. The melt rock fraction contains abundant 100 µm vacuoles. Main minerals are exsolved pyroxene and plagioclase. Accessory minerals: troilite, ilmenite, chromite, FeNi metal.

Geochemistry: Pyroxene Fs_57.5±2.2Wo_7.9±3.0, FeO/MnO 30.9±0.2 (n=3). Plagioclase An_88.3±1.0Ab_11.2±1.0Or_0.5±0.2(n=5).

Classification: Achondrite (eucrite-melt breccia)

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	2017
Mass (g):	209
Pieces:	1
Class:	Eucrite-melt breccia
Weathering grade:	low
Ferrosilite (mol%):	57.5±2.2 (n=3)
Wollastonite (mol%):	7.9±3.0
Magnetic suscept.:	3.73
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	22.2
Type spec location:	CEREGE
Main mass:	Rik Bursens
Finder:	anonymous
Comments:	work name CM79; 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., 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 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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