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Northwest Africa 14995
Basic information Name: Northwest Africa 14995
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14995
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 160 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
Writeuphelp
Writeup from MB 111:

Northwest Africa 14995 (NWA 14995)

(Northwest Africa)

Purchased: 2021 Dec

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Shun-Chung Yang and Juan Chen in 2021 from a dealer in Tindouf, Algeria.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed unequilibrated, glass-bearing chondrules (exhibiting a wide range in apparent diameter of 430±320 µm, N = 26), together with small, zoned olivine fragments and rare very small, very fine-grained CAI, are set in a fine grained matrix (~ 40 vol.%, deep reddish-brown in thin section) containing magnetite, troilite, pentlandite and kamacite.

Geochemistry: Olivine (Fa14.7±8.6, range Fa0.4-39.7, N = 17; Cr2O3 in ferroan olivine 0.01-0.48 wt.%, mean 0.15±0.11 wt.%, N = 13), low-Ca pyroxene (Fs15.4±9.6Wo1.9±1.4, range Fs1.0-29.5Wo1.0-5.0, N = 8), augite (Fs6.2Wo36.7; Fs4.1Wo41.4; N = 2).

Classification: Carbonaceous chondrite (CO3, magnetite-bearing).

Specimens: 21.8 g including one polished thin section at UWB; remainder with Mr. S.-C. Yang and Mr. J. Chen.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Tindouf
Date:P 2021 Dec
Mass (g):160
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):14.7±8.6
Ferrosilite (mol%):15.4±9.6
Wollastonite (mol%):1.9±1.4
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):21.8
Type spec location:UWB
Main mass:S.-C. Yang and J. Chen
Comments:Work name SCY-59; 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 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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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Elang Erlangga   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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