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Northwest Africa 14100
Basic information Name: Northwest Africa 14100
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14100
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 561 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  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 8 Aug 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14100 (NWA 14100)

Algeria

Purchased: 2021

Classification: Carbonaceous chondrite (CV3)

Physical characteristics: Brownish stone without fusion crust. Cut face reveals large chondrules and CAIs set in a brownish matrix.

Petrography: (J. Gattacceca, CEREGE) Chondrite with mm-size chondrules and CAIs set in an abundant fine-grained iron-rich matrix. Almost all primary opaques have been lost to terrestrial weathering.

Geochemistry: Olivine Fa15.6±17.3, range Fa1.1-47.5 (n=7). Ca-pyroxene Fs1.1Wo30.0 (n=1). Defocused analyses of the matrix: FeO 35.0 wt%, analytical total 87.7 wt%

Classification: Carbonaceous chondrite (CV3). The very high terrestrial weathering prevents analyzing the sulfides and deciding betwwen CVox and CVred.

Specimens: Type specimen at CEREGE. Main mass with Isabelle Pothier.

Data from:
  MB110
  Table 0
  Line 0:
Date:P 2021
Mass (g):561
Pieces:5
Class:CV3
Weathering grade:high
Fayalite (mol%):15.6±17.3 (n=7)
Ferrosilite (mol%):1.0 (n=1)
Wollastonite (mol%):2.9
Magnetic suscept.:3.11
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):20.4
Type spec location:CEREGE
Main mass:Isabelle Pothier
Finder:anonymous
Comments:work name CM77; submitted by Jérôme Gattacceca
Institutions
   and collections		 CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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    (Caution, these are of unknown reliability)
Denis gourgues      
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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Revision
  history:
  This lists important revisions made to data for this record.

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