Meteoritical Bulletin: Entry for Northwest Africa 13715

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Northwest Africa 13715

Basic information

Name: Northwest Africa 13715
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13715
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 176.6 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	Lunar (feldsp. breccia)
Recommended:			Lunar (feldsp. breccia) [explanation]

This is 1 of 344 approved meteorites classified as Lunar (feldsp. breccia). [show all]
Search for other: Lunar meteorites

Comments:

Approved 20 Mar 2021

Writeup

Writeup from MB 110:

Northwest Africa 13715 (NWA 13715)

(Northwest Africa)

Purchased: October 2020

Classification: Lunar meteorite (feldspathic breccia)

Physical characteristics: Sixteen black stones with mass ranging from 0.77g to 40.81g

Petrography: (J. Gattacceca, CEREGE) Subrounded mineral clasts to 600 µm and rare lithic clasts (with granulitic texture) set in a feldspathic mesostasis (evolving to a melt rock matrix in some areas) with vesicles to 10 µm. Main components are pyroxene and olivine, and feldspathic glass. Other minerals: metal, troilite.

Geochemistry: Olivine Fa_31.0and Fa_40.3, FeO/MnO = 105.5 n(=2). Pyroxene Fs_19.9Wo_4.0, Fs_15.6Wo_25.0, Fs_13.1Wo_37.4, FeO/MnO = 64.2 (n=3). Chromite Cr# = 0.67 (n=1). Feldspathic fraction An_95.4±0.3Ab_4.2±0.4Or_0.4±0.2(n=3).

Classification: Achondrite (lunar feldspathic breccia)

Specimens: Type specimen at CEREGE. Main mass with Kuntz.

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Tindouf, Algeria
Date:	P Oct 2020
Mass (g):	176.6
Pieces:	16
Class:	Lunar (feldsp. breccia)
Weathering grade:	moderate
Fayalite (mol%):	35.7 (n=2)
Magnetic suscept.:	3.51
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	21.04
Type spec location:	CEREGE
Main mass:	Kuntz
Finder:	anonymous
Comments:	work name K525; 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)
Kuntz: Fabien Kuntz, France; Website (private address)

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 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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