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Northwest Africa 5704
Basic information Name: Northwest Africa 5704
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5704
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 221 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  CK5
Recommended:  CK5    [explanation]

This is 1 of 192 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 26 Sep 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 5704 (NWA 5704)

(Northwest Africa)

Purchased: 2009

Classification: Carbonaceous chondrite (CK5)

History: The meteorite was bought in 2009 from a Moroccan meteorite dealer on a mineral fair in Berlin, Germany.

Physical characteristics: Grayish individual partly covered by fusion crust.

Petrography: The meteorite is composed of recrystallized olivine-dominated matrix with scattered chondrules still being discernable. Cr-rich magnetite is abundant. More minor phases include intermediate plagioclase, low-Ca pyroxene, and troilite. Metal is virtually absent.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Berlin, Germany
Date:P 2009
Mass (g):221
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):30.6±0.3 (n=14)
Ferrosilite (mol%):25.2±0.7 (n=11)
Wollastonite (mol%):0.8±0.1 (n=11)
Classifier:A. Greshake, MNB
Type spec mass (g):20.4
Type spec location:MNB
Main mass:Stefan Ralew
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Dirk Hohmann Photo added 19 Apr 2022
Photo added 19 Apr 2022
Mirko Graul Photo added 19 Apr 2022
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8402 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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