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Northwest Africa 7789
Basic information Name: Northwest Africa 7789
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7789
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 8.2 kg
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL4
Recommended:  LL4    [explanation]

This is 1 of 361 approved meteorites classified as LL4.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 30 Aug 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7789 (NWA 7789)

(Northwest Africa)

Purchased: Mar 2011

Classification: Ordinary chondrite (LL4)

History: The stone was purchased in Erfoud from Said Haddany and Ali Oulmaleh in March, 2011.

Physical characteristics: A ~60% fusion-crusted stone was recovered. Broken face exhibited gray interior, clasts, and large white chondrules. Fusion crust is black and textured. Large cut face exhibits numerous chondrules and visible clasts.

Petrography: Large cut face exhibits an LL4 breccia with metamorphosed LL clasts and some carbonaceous chondrite clasts.

Specimens: JUtas: 8 kg; UCLA: 233 g

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P Mar 2011
Mass (g):8200
Pieces:1
Class:LL4
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):29.6±0.2 (n=23)
Ferrosilite (mol%):24.3
Wollastonite (mol%):1.3 (n=12)
Classifier:Alan Rubin, UCLA
Type spec mass (g):233
Type spec location:UCLA
Main mass:JUtas
Comments:Submitted by Alan Rubin
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
JUtas: Jason Utas, United States (private address; updated 8 Jun 2010)
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 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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