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:

Recommended:

Lunar (feldsp. breccia) [explanation]

This is 1 of 280 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 29 Oct 2018)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 110, in preparation (2021)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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