Meteoritical Bulletin: Entry for Northwest Africa 14882

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Northwest Africa 14882

Basic information

Name: Northwest Africa 14882
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14882
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass: 47.1 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	CO3
Recommended:			CO3 [explanation]

This is 1 of 645 approved meteorites (plus 1 unapproved name) classified as CO3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites

Comments:

Approved 20 Jun 2022

Writeup

help

Writeup from MB 111:

Northwest Africa 14882 (NWA 14882)

(Northwest Africa)

Purchased: 2021 Sep

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Jason Whitcomb in September 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Small, well-formed chondrules (apparent diameter 230±150 µm, N = 26), zoned mineral fragments and sparse, very fine grained diopside-forsterite-bearing CAI are set in a fine grained matrix (~30 vol.%, red-brown in thin section) containing magnetite, troilite and altered kamacite.

Geochemistry: Olivine (Fa_29.7±18.6, range Fa_0.2-56.4, N = 9; Cr₂O₃ in ferroan olivine 0.04-0.52 wt.%, mean 0.28±0.15 wt.%, N = 7), low-Ca pyroxene (Fs_4.8±4.2Wo_1.4±1.4, range Fs_1.4-12.5Wo_0.6-4.6, N = 8), subcalcic augite (Fs_10.5Wo_23.1), Al-Ti-diopside (Fs_0.6Wo_51.6, Al₂O₃ 6.1 wt.%, TiO₂ 0.5 wt.%), augite (Fs_11.2±13.2Wo_43.0±2.4, range Fs_0.6-26.0Wo_40.4-45.1, N = 3).

Classification: Carbonaceous chondrite (CO3).

Specimens: 9.7 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Algeria
Date:	P 2021 Sep
Mass (g):	47.1
Pieces:	1
Class:	CO3
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	29.7±18.6
Ferrosilite (mol%):	4.8±4.2
Wollastonite (mol%):	1.4±1.4
Classifier:	A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):	9.7
Type spec location:	PSF
Main mass:	J. Whitcomb
Comments:	Work name JW-112; submitted by A. Irving

Institutions
and collections

PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?

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Geography:

Coordinates:

Unknown.

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

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Revision
history:

This lists important revisions made to data for this record.

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