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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:help 47.1 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 612 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
Writeuphelp
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 (Fa29.7±18.6, range Fa0.2-56.4, N = 9; Cr2O3 in ferroan olivine 0.04-0.52 wt.%, mean 0.28±0.15 wt.%, N = 7), low-Ca pyroxene (Fs4.8±4.2Wo1.4±1.4, range Fs1.4-12.5Wo0.6-4.6, N = 8), subcalcic augite (Fs10.5Wo23.1), Al-Ti-diopside (Fs0.6Wo51.6, Al2O3 6.1 wt.%, TiO2 0.5 wt.%), augite (Fs11.2±13.2Wo43.0±2.4, range Fs0.6-26.0Wo40.4-45.1, 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: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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