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Northwest Africa 4852
Basic information Name: Northwest Africa 4852
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4852
Observed fall: No
Year found: 2002
Country: Morocco
Mass:help 237 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 528 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 8 Jul 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 4852 (NWA 4852)

Morocco

Purchased: 2002

Classification: Ureilite

Petrography: Mode is dominated by subequal proportions of olivine and pigeonite. Texture is weakly poikilitic, with pigeonite oikocrysts showing optical continuity to 5 mm. Anhedral-equant olivines to 2.5 mm, with rims containing abundant submicrometer-sized metal.

Geochemistry: Olivine cores are Fa12.6; rims to at least Fa3.

Data from:
  MB100
  Table 1
  Line 1204:
Place of purchase:Morocco
Date:P 2002
Mass (g):237
Pieces:1
Class:Ureilite
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):12.6
Ferrosilite (mol%):11.4
Wollastonite (mol%):9.0
Classifier:Paul Warren, UCLA
Type spec mass (g):20.6
Type spec location:UCLA
Main mass:Paul Sipiera
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. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1466 approved meteorites from Morocco (plus 21 unapproved names) (plus 1 impact crater)

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