Meteoritical Bulletin: Entry for Northwest Africa 13064

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Northwest Africa 13064

Basic information

Name: Northwest Africa 13064
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13064
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 6.3 kg

Classification
history:

Meteoritical Bulletin:	MB 109	(2020)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 603 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 31 Jan 2020

Writeup

Writeup from MB 109:

Northwest Africa 13064 (NWA 13064)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Many greyish fragments without fusion crust.

Petrography: The meteorite is a fragmental breccia composed of larger exsolved pyroxene (up to 400 µm) and calcic plagioclase (up to 500 µm) grains set into a more fine-grained clastic matrix. Minor phases include silica, chromite, FeS, and ilmenite. No metallic iron has been detected. The meteorite contains shock melt veins.

Geochemistry: low-Ca pyroxene: Fs_57.4±0.5Wo_2.7±0.2(Fs_57.0-58.8Wo_2.2-3.1, FeO/MnO=26-28, n=12); Ca-pyroxene: Fs_25.2±0.7Wo_43.3±0.7(Fs_24.4-27.3Wo_41.1-44.0, FeO/MnO=24-28, n=15); calcic plagioclase: An_90.9±0.4(An_90.2-91.6, n=14)

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2019
Mass (g):	6300
Pieces:	many
Class:	Eucrite
Shock stage:	low
Weathering grade:	moderate
Ferrosilite (mol%):	57.4; 25.2
Wollastonite (mol%):	2.7; 43.3
Classifier:	A. Greshake, MNB
Type spec mass (g):	26.9
Type spec location:	MNB
Main mass:	Mohamed Lamine
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 Meteoritical Bulletin, no. 109, in preparation (2020)

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Guchen Chen
Qi Lv

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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