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Northwest Africa 5695
Basic information Name: Northwest Africa 5695
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5695
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 28 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  LL3-6
Recommended:  LL3-6    [explanation]

This is 1 of 28 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 31 Mar 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 5695 (NWA 5695)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (LL3-6)

Petrography: The meteorite is a chondritic breccia composed of LL3 to LL6 clasts set into a fine-grained clastic matrix. LL3 and LL4 clasts show perfect chondritic textures with clearly defined chondrules about 1 mm in diameter. Plagioclase grain size in LL5 clasts is about 30 µm and in LL6 clasts about 80 µm.

Geochemistry: Olivine and pyroxene in LL3 clasts are highly unequilibrated with Fa23.8±9.3 (1.0-32.4, n=25) and Fs15.4±6.4Wo1.0±0.7 (Fs1.8-25.1Wo0.2-2.8, n=28). In LL5 and LL6 clasts olivine and pyroxene are equilibrated at Fa29.8±0.4, n=15 and Fs24.4±0.4Wo0.7±0.4, n=27.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2005
Mass (g):28
Pieces:1
Class:LL3-6
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):23.8±9.3 (1.0-32.4, n=25); 29.8±0.4 (n=15)
Ferrosilite (mol%):15.4±6.4 (1.8-25.1, n=28); 24.4±0.4 (n=27)
Wollastonite (mol%):1.0±0.7 (0.2-2.8, n=28); 0.7±0.4 (n=27)
Classifier:A. Greshake, MNB
Type spec mass (g):5.8
Type spec location:MNB
Main mass:Fabien Kuntz
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Krzysztof Nowak   
Michael S. Scherman      
Mike Markowitz   
The Wilcox Collection of Meteorites      
xeqtr      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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