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Northwest Africa 14978
Basic information Name: Northwest Africa 14978
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14978
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 48 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  CV3
Recommended:  CV3    [explanation]

This is 1 of 470 approved meteorites (plus 2 unapproved names) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 25 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14978 (NWA 14978)

(Northwest Africa)

Purchased: 2021 Aug

Classification: Carbonaceous chondrite (CV3)

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

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed chondrules (some with concentric rims, apparent diameter 980 ± 430 µm, N = 24) and amoeboid, very fine-grained CAI are set in a fine grained matrix (~40 vol.%, deep reddish-brown in thin section) containing Cr-bearing magnetite, troilite and rare kamacite. Mineral assemblages in two examined CAI are hedenbergite+anorthite+augite+olivine+magnetite and diopside+spinel+anorthite. Minor secondary calcite occurs in veinlets.

Geochemistry: Olivine (Fa26.0±27.5, range Fa5.1-77.9, N = 12), low-Ca pyroxene (Fs1.2±0.6Wo1.7±1.1, range Fs0.8-1.6Wo0.9-2.5, N = 3), pigeonite (Fs1.9Wo5.6), subcalcic augite (Fs1.4Wo34.2), magnetite (Cr2O3 0.3-1.3 wt.%, N = 5).

Classification: Carbonaceous chondrite (CV3).

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 Aug
Mass (g):48
Pieces:14
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):26.0±27.5
Ferrosilite (mol%):1.2±0.6
Wollastonite (mol%):1.7±1.1
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-83; 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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
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