Meteoritical Bulletin: Entry for Northwest Africa 15521

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Northwest Africa 15521

Basic information

Name: Northwest Africa 15521
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15521
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 1001 g

Classification
history:

Meteoritical Bulletin:	MB 112	(2023)	CVox3
Recommended:			CVox3 [explanation]

This is 1 of 53 approved meteorites classified as CVox3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 7 Jan 2023

Writeup

help

Writeup from MB 112:

Northwest Africa 15521 (NWA 15521)

(Northwest Africa)

Purchased: 2022 Feb

Classification: Carbonaceous chondrite (CVox3)

History: Purchased by Quanming Lu in February 2022 from a dealer in Agadir, Morocco.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed unequilibrated chondrules (some with multiple rims; apparent diameter 1310±790 µm, N = 25) plus relatively large irregularly-shaped, very fine grained CAI and some AOA are set in a fine grained matrix (~30 %, deep red-brown in thin section) containing augite, pentlandite, troilite, taenite and minor Cr-bearing magnetite. Mineral phases in CAI include anorthite, spinel, olivine and diopside.

Geochemistry: Olivine (Fa_17.1±14.4, range Fa_2.4-38.7, N = 11), low-Ca pyroxene (Fs_1.0±0.3Wo_1.0±0.2, range Fs_0.8-1.3Wo_0.8-1.3, N = 3), diopside (Fs_0.8±0.3Wo_37.6±3.2, range Fs_0.5-1.2Wo_35.4-41.3, N =3), magnetite (Cr₂O₃ 0.6-1.9 wt.%, N = 6).

Classification: Carbonaceous chondrite (CVox3).

Specimens: 22.4 g including one polished thin section at UWB; remainder with Quanming Lu.

Data from:
  MB112
  Table 0
  Line 0:

Place of purchase:	Agadir
Date:	P 2022 Feb
Mass (g):	1000.8
Pieces:	1
Class:	CVox3
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	17.1±14.4
Ferrosilite (mol%):	1.0±0.3
Wollastonite (mol%):	1.0±0.2
Classifier:	A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):	22.4
Type spec location:	UWB
Main mass:	Quanming Lu
Comments:	Work name LQ22-1; submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 112, in preparation (2023)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 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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