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Northwest Africa 5505
Basic information Name: Northwest Africa 5505
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5505
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 586 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  CO3
Recommended:  CO3    [explanation]

This is 1 of 639 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 4 Mar 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 5505 (NWA 5505)

(Northwest Africa)

Purchased: 2008

Classification: Carbonaceous chondrite (CO3)

History: The meteorite was bought in 2008 from a meteorite dealer in Erfoud, Morocco.

Physical characteristics: Light brownish individual lacking any fusion crust.

Petrography: The meteorite exhibits a chondritic texture of abundant small chondrules, CAIs, and mineral fragments set into a fine-grained matrix. Chondrules are dominantly porphyritic type I and typically 0.1-0.2 mm in diameter. Contains sulfides and FeNi metal in matrix and chondrules. Several calcite-filled cracks were detected.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2008
Mass (g):586
Pieces:1
Class:CO3
Shock stage:S1
Weathering grade:medium
Fayalite (mol%):17.3±17.7 (0.7-52.7, n=21)
Ferrosilite (mol%):2.6±1.2 (1.2-5.1, n=22)
Wollastonite (mol%):1.6±0.9 (0.9-4.2, n=22)
Classifier:A. Greshake, MNB
Type spec mass (g):20.2
Type spec location:MNB
Main mass:Marcin Cimala
Comments: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 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)
Mirko Graul   
Ryan Upchurch   
Stelvino   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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