header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:
 
Northwest Africa 14999
Basic information Name: Northwest Africa 14999
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14999
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 1250 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 20 Jun 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14999 (NWA 14999)

(Northwest Africa)

Purchased: 2022 Jan

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Eric Twelker in January 2022 from a dealer in Agadir, Morocco.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed, unequilibrated chondrules (some with concentric rims, apparent diameter 1000±390 µm, N = 25) containing devitrified glass, together with relatively abundant CAI of several types, are set in a fine grained matrix (~30 vol.%, deep reddish-brown to opaque in thin section) containing Cr-bearing magnetite, troilite and kamacite. The CAI comprise amoeboid, very fine grained and relatively coarse granular types, and are composed of anorthite, diopside, hercynitic spinel, Mg-spinel, hibonite and perovskite.

Geochemistry: Olivine (Fa10.0±14.2, range Fa1.2-51.7, N = 11), low-Ca pyroxene (Fs1.1±0.3Wo0.8±0.0, range Fs0.8-1.4Wo0.8±0.0, N = 4), diopside (Fs1.3Wo47.8), magnetite (Cr2O3 2.0±1.5 wt.%, N = 7).

Classification: Carbonaceous chondrite (CV3).

Specimens: 22.0 g plus one polished thin section at UWB; remainder with Twelker.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2022 Jan
Mass (g):1250
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):10.0±14.2
Ferrosilite (mol%):1.1±0.3
Wollastonite (mol%):0.8±0.0
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):22.0
Type spec location:UWB
Main mass:Twelker
Comments:Work name ET22-1; 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)
Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014)
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. ?
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

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

Direct link to this page