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Northwest Africa 6696
Basic information Name: Northwest Africa 6696
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6696
Observed fall: No
Year found: 2007
Country: Morocco
Mass:help 10 g
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  LL3.6
Recommended:  LL3.6    [explanation]

This is 1 of 21 approved meteorites classified as LL3.6.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 28 Apr 2011
Writeuphelp
Writeup from MB 99:

Northwest Africa 6696 (NWA 6696)

Morocco

Purchased: 2007

Classification: Ordinary chondrite (LL3.6)

Classification: Ordinary chondrite, LL3.6. The olivine Fa distribution (Fa24.4±9.1) and low-Ca pyx Fs distribution (Fs12.3±7.1) are appreciably more heterogeneous than those of Dhajala (type 3.8), indicating a subtype <3.8. The meteorite contains abundant low-Ca clinopyroxene with polysynthetic twinning (indicating type <4) and moderately abundant fine-grained matrix material (most consistent with type 3.0-3.6). Clear chondrule glass is most abundant in type 3.0-3.5; this meteorite lacks clear chondrule glass, implying a subtype >3.5. Hence, 3.6 seems the most likely subtype.

Data from:
  MB99
  Table 0
  Line 0:
Date:P 2007
Mass (g):10
Pieces:1
Class:LL3.6
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):24.4 ± 9.1 (n=52)
Ferrosilite (mol%):12.3 ± 7.1 (n=29)
Classifier:Alan Rubin
Type spec mass (g):6.30
Type spec location:UCLA
Main mass:UCLA
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)
Catalogs:
References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2003 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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