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Northwest Africa 2897 | |||||
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Basic information | Name: Northwest Africa 2897 This is an OFFICIAL meteorite name. Abbreviation: NWA 2897 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: 23.3 g | ||||
Classification history: |
This is 1 of 34 approved meteorites classified as R3-6. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||
Comments: | Approved 21 Sep 2005 | ||||
Writeup |
Writeup from MB online:
Northwest Africa 2897 Northwest Africa Find: 2004 Rumuruti-like (R3–6) History: An anonymous finder recovered one small stone of 23.3 g in 2004 in the North African Sahara. Petrography: (A. Greshake, MNB) Olivine (Fa1.2–59.8), low-Ca pyroxene (Fs1.5–30Wo0.1–4.9), augite (Fs7–17Wo24.4–48.5), and plagioclase (An4.9–14). Geochemistry: Oxygen isotopes: (I. Franchi and R. C. Greenwood, OU) δ17O = +5.542, δ18O = +5.06, ∆17O = +2.91 (all ‰), which are close to Rumuruti itself. Classification: Rumuruti-like (R3–6); low shock, minimal weathering. Specimens: A 5.75 g type specimen and one polished 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) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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