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Northwest Africa 7715
Basic information Name: Northwest Africa 7715
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7715
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 3.2 kg
Meteoritical Bulletin:  MB 102  (2013)  H6
Recommended:  H6    [explanation]

This is 1 of 6213 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Jun 2013
Writeup from MB 102:

Northwest Africa 7715 (NWA 7715)

(Northwest Africa)

Purchased: 2012 Jun

Classification: Ordinary chondrite (H6)

History: Purchased by JUtas in June 2012 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Extensively recrystallized with very sparse, small remnant chondrules. Olivine, orthopyroxene, augite, sodic plagioclase, chromite, merrillite, altered kamacite and troilite. The specimen is crosscut by subparallel, thin secondary iron hydroxide veinlets.

Geochemistry: Olivine (Fa19.0-19.3), orthopyroxene (Fs16.9-17.2Wo1.8-1.5), augite (Fs6.6-7.7Wo46.0-46.1).

Classification: Ordinary chondrite (H6). Likely paired with NWA 7832.

Specimens: A total of 27.1 g of material and one polished thin section are on deposit at UWB. The main mass is held by J. and P. Utas.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2012 Jun
Mass (g):3200
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):19.0-19.3
Ferrosilite (mol%):16.9-17.2
Wollastonite (mol%):1.8-1.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):27.1
Type spec location:UWB
Main mass:JUtas
Comments:28.3; submitted by A. Irving
   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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
JUtas: Jason Utas, United States (private address; updated 8 Jun 2010)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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