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Northwest Africa 7829
Basic information Name: Northwest Africa 7829
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7829
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 155 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  R3
Recommended:  R3    [explanation]

This is 1 of 32 approved meteorites classified as R3.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 8 Nov 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 7829 (NWA 7829)

(Northwest Africa)

Purchased: 2013 Mar

Classification: Rumuruti chondrite (R3)

History: Purchased in Ouarzazate, Morocco in March 2013 by M. Aid.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh unequilibrated specimen composed of separated, well-formed, medium-sized chondrules in a matrix relatively rich in sulfides and lacking metal. Olivine, orthopyroxene, subcalcic augite, augite, intermediate plagioclase, pentlandite, Ni-bearing troilite and Ni-free troilite. Rare sodalite occurs intergrown with olivine, subcalcic augite and chromite.

Geochemistry: Olivine (Fa4.9-40.2), orthopyroxene (Fs5.0-27.0Wo0.5-1.7), subcalcic augite (Fs13.7Wo35.4), augite (Fs10.1Wo45.7).

Classification: R3 chondrite.

Specimens: A total of 20.1 g of material and one polished thin section are on deposit at UWB. M. Aid holds the main mass.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2013 Mar
Mass (g):155
Pieces:1
Class:R3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):4.9-40.2
Ferrosilite (mol%):5.0-27.0
Wollastonite (mol%):0.5-1.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:M. Aid
Comments:132; 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6757 approved meteorites from (Northwest Africa) (plus 2048 unapproved names)

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