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Northwest Africa 7817
Basic information Name: Northwest Africa 7817
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7817
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 1334 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  L4
Recommended:  L4    [explanation]

This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Jun 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7817 (NWA 7817)

(Northwest Africa)

Purchased: 2013 Feb

Classification: Ordinary chondrite (L4)

History: Purchased by GHupé in February 2013 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Medium-sized, well formed chondrules. Olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, altered kamacite and troilite.

Geochemistry: Olivine (Fa26.4-26.5), orthopyroxene (Fs22.2-22.9Wo0.8-0.9), clinopyroxene (Fs11.4Wo37.0; Fs10.2Wo42.4).

Classification: Ordinary chondrite (L4).

Specimens: A total of 20.3 g of material and one polished thin section are on deposit at UWB. GHupé holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2013 Feb
Mass (g):1334
Pieces:1
Class:L4
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):26.4-26.5
Ferrosilite (mol%):22.2-22.9
Wollastonite (mol%):0.8-0.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.3
Type spec location:UWB
Main mass:GHupé
Comments:GH-446; submitted by A. Irving
Institutions
   and collections		 UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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