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Northwest Africa 2895
Basic information Name: Northwest Africa 2895
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2895
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 43 g
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 570 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 21 Sep 2005
Writeuphelp
Writeup from MB online:

Northwest Africa 2895

Northwest Africa

Find: 2004

Achondrite (ureilite)

History: A single stone of 43 g was found 2004 by an anonymous finder in the North African Sahara.

Petrography and Geochemistry: (A. Greshake, MNB) The sample is dominantly composed of large pigeonite (Fs9.9– 10.8Wo5.2–10.1; Cr2O3 = 1.1 wt%) often enclosing small pyroxenes and less abundant olivines.

Geochemistry: Oxygen isotopes: (I. Franchi and R. C. Greenwood, OU) δ17O = +3.27, δ18O = +8.243, ∆17O = −1.016 (all ‰).

Classification: Achondrite (ureilite); low shock, moderate weathering.

Specimens: An 8.9 g type specimen and one thin section are on deposit at MNB. Stefan Ralew of Germany holds the main mass.

Plots: O isotopes:  
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7675 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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