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Northwest Africa 7709
Basic information Name: Northwest Africa 7709
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7709
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 115 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  R3
Recommended:  R3    [explanation]

This is 1 of 77 approved meteorites classified as R3.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 11 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7709 (NWA 7709)

(Northwest Africa)

Found: 2012

Classification: Rumuruti chondrite (R3)

Petrography: The light brownish rock is composed of clearly 0.3-0.4 mm sized and clearly defined chondrules set into a more fine-grained matrix of chondrule and mineral fragments. The meteorite contains some dark clast. In both lithologies olivine and pyroxene are unequilibrated. Opaque phases are dominantly sulfides; metal is rare.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauretania
Date:2012
Mass (g):115
Pieces:1
Class:R3
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):37.7±11.2 (2.3-38.3, n=69)
Ferrosilite (mol%):13±16 (3.2-28.4, n=16)
Classifier:A. Greshake, MNB
Type spec mass (g):23.6
Type spec location:MNB
Main mass:Svend Buhl
Comments:NiO in olivine is 0.16-0.2 wt.%; submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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