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Northwest Africa 4907
Basic information Name: Northwest Africa 4907
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4907
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 2.9 kg
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  H3
Recommended:  H3    [explanation]

This is 1 of 710 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 17 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 4907 (NWA 4907)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (H3)

History: The meteorite was purchased from a meteorite dealer in Morocco.

Physical characteristics: Brownish rock without fusion crust.

Petrography: The meteorite shows a dark brownish interior and displays a chondritic texture with separated, sharply defined, and mostly rounded chondrules (apparent mean diameter about 300 µm). FeNi metal and sulfides and are strongly altered to Fe-hydroxides.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2005
Mass (g):2900
Pieces:1
Class:H3
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):16.8±6.7 (0.9-23.2, n=40)
Ferrosilite (mol%):12.6±5.6 (4.4-19.0, n=27)
Wollastonite (mol%):1.4±0.9 (0.4-2.9, n=27)
Magnetic suscept.:4.75
Classifier:A. Greshake, MNB
Type spec mass (g):21.5
Type spec location:MNB
Main mass:anonymous
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., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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