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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:
Recommended:  CV3    [explanation]

This is 1 of 565 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 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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