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Northwest Africa 7028
Basic information Name: Northwest Africa 7028
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7028
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 1160 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2749 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Jul 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 7028 (NWA 7028)

(Northwest Africa)

Purchased: 2010 Feb

Classification: Ordinary chondrite (LL6)

History: Purchased by Blaine Reed in February 2010 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly recrystallized with rare chondrule remnants.

Geochemistry: Olivine (Fa27.1-28.0, N = 3), orthopyroxene (Fs22.9-22.6Wo1.2-1.6, N = 3), augite (Fs6.2-6.3Wo46.2-46.8, N = 2).

Classification: Ordinary chondrite (LL6).

Specimens: 21.3 g including one polished thin section and a polished slice at PSF; main mass with Reed.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2010 Feb
Mass (g):1160
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):27.1-28.0
Ferrosilite (mol%):22.4-22.6
Wollastonite (mol%):1.2-1.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.3
Type spec location:PSF
Main mass:B. Reed
Comments:BR58; submitted by A. Irving
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)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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