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Northwest Africa 7883
Basic information Name: Northwest Africa 7883
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7883
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 25 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  CO3
Recommended:  CO3    [explanation]

This is 1 of 566 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 10 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7883 (NWA 7883)

(Northwest Africa)

Purchased: 2013 Feb

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Alexandre Debienne in February 2013 from a dealer in Agadir, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively small (0.2-0.4 mm), magnesian chondrules and sparse CAI (containing gehlenite, anorthite, hedenbergite, spinel and perovskite) set in a matrix containing more ferroan olivine, troilite and taenite.

Geochemistry: Olivine (Fa0.4-48.1, N = 5; Cr2O3 in ferroan examples = 0.08-0.62 wt.%), orthopyroxene (Fs1.7-5.2Wo1.8-3.9), subcalcic augite (Fs0.8Wo35.0).

Classification: Carbonaceous chondrite (CO3).

Specimens: Type specimen plus one polished thin section at PSF; main mass with A. Debienne.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2013 Feb
Mass (g):25
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.4-48.1
Ferrosilite (mol%):1.7-5.2
Wollastonite (mol%):1.8-3.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):5.3
Type spec location:PSF
Main mass:A. Debienne
Comments:AD 13002; submitted by P. Sipiera
Institutions
   and collections		 PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names)

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