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Northwest Africa 13881
Basic information Name: Northwest Africa 13881
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13881
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 1600 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  CV3
Recommended:  CV3    [explanation]

This is 1 of 628 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 6 May 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13881 (NWA 13881)

(Northwest Africa)

Purchased: 2019

Classification: Carbonaceous chondrite (CV3)

History: Bought from Mohamed Elguirah in 2019 in Guelmim by Jean Redelsperger.

Physical characteristics: Several dark fragments without fusion crust. The largest fragment weighs 660 g.

Petrography: (J. Gattacceca, CEREGE) Chondrite with large chondrules (average apparent diameter 1020±530 µm (n=15) and CAIs (to mm) set in a fine-grained, iron-rich abundant matrix (57 vol% by point counting, n=472). Almost all original opaque minerals, except magnetite, are replaced by terrestrial weathering products.

Geochemistry: Olivine Fa3.6±2.1, range Fa1.6-6.9 (n=5). Low-Ca pyroxene Fs6.0±3.2Wo1.8±0.6 (n=3). Analytical total of matrix defocused analysis: 93.0 wt% (n=1)

Classification: Carbonaceous chondrite (CV3). The strong weathering makes it difficult to ascribe this CV chondrite into the oxidized or reduced subgroup.

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Guelmim, Morocco
Date:P 2019
Mass (g):1600
Pieces:several
Class:CV3
Weathering grade:high
Fayalite (mol%):3.6±2.1 (n=6)
Ferrosilite (mol%):6.0±3.2 (n=3)
Wollastonite (mol%):1.8±0.6
Magnetic suscept.:4.39
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):24
Type spec location:CEREGE
Main mass:Jean Redelsperger
Finder:anonymous
Comments:work name JR076; 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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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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