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Northwest Africa 7888
Basic information Name: Northwest Africa 7888
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7888
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 494 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL7
Recommended:  LL7    [explanation]

This is 1 of 60 approved meteorites classified as LL7.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 11 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7888 (NWA 7888)

(Northwest Africa)

Purchased: 2013 Feb

Classification: Ordinary chondrite (LL7)

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

Petrography: (A. Irving and S. Kuehner, UWS) Completely recrystallized assemblage of olivine, orthopyroxene, clinopyroxene, sodic plagioclase, Ti-bearing chromite, iron sulfide, altered kamacite and taenite.

Geochemistry: Olivine (Fa31.8-32.0, FeO/MnO = 90-95), orthopyroxene (Fs25.2-25.3Wo1.7-2.2), clinopyroxene (Fs9.5-11.1Wo44.0-42.2).

Classification: Ordinary chondrite (LL7).

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

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2013 Feb
Mass (g):494
Pieces:1
Class:LL7
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):31.8-32.0
Ferrosilite (mol%):25.2-25.3
Wollastonite (mol%):1.7-2.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.2
Type spec location:PSF
Main mass:A. Debienne
Comments:AD 13007; 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:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
John A. Shea   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6781 approved meteorites from (Northwest Africa) (plus 2047 unapproved names)

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