Meteoritical Bulletin: Entry for Northwest Africa 15741

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Northwest Africa 15741

Basic information

Name: Northwest Africa 15741
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15741
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 64 g

Classification
history:

Recommended:

R3 [explanation]

This is 1 of 69 approved meteorites classified as R3. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)

Comments:

Approved 23 Feb 2023

Writeup

Writeup from MB 112:

Northwest Africa 15741 (NWA 15741)

(Northwest Africa)

Purchased: August 2022

Classification: Rumuruti chondrite (R3)

Physical characteristics: Dark brown irregular stone. Cut surface reveals a brownish interior with chondrules and abundant matrix.

Petrography: (J. Gattacceca, CEREGE) Chondrites with chondrules with average apparent diameter 300±110 µm (n=15) set in an abundant recrystallized matrix making up about 50 vol%. Matrix plagioclase average size 20 µm. Opaque minerals are moslty weathered, with rare remnants of sulfides and metal.

Geochemistry: Olivine Fa_37.7±4.28, range Fa_28.3-40.9, NiO 0.17±0.05 wt% (n=6). Pyroxene Fs_11.5Wo_46.1(n=1).

Classification: Rumuruti chondrite (R3)

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

Data from:
  MB112
  Table 0
  Line 0:

Place of purchase:	Guelmin. Morocco
Date:	P August 2022
Mass (g):	64
Pieces:	1
Class:	R3
Weathering grade:	high
Fayalite (mol%):	38.7±4.3 (n=6)
Magnetic suscept.:	2.97
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	14.29
Type spec location:	CEREGE
Main mass:	Kuntz
Finder:	anonymous
Comments:	work name K557; 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. 112, in preparation (2023)

Find references in NASA ADS:
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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1870 unapproved names)

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