Northwest Africa 2999

Name: Northwest Africa 2999
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2999
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass: 392 grams

Meteoritical Bulletin:    (2006)  Angrite
Recommended:  Angrite    
This is 1 of 40 approved meteorites classified as Angrite.  

Approved 16 Jan 2006

Northwest Africa 2999

Morocco or Algeria

Find: 2004

Achondrite (angrite)

History: Twelve individual dark brown stones totaling 392 g, each with a thin fusion crust, were purchased from a Moroccan dealer in Tagounite by G. Hupé in August 2004.

Physical Characteristics: Grain size is predominantly from 0.1 to 0.5 mm, but all stones have irregularly distributed, larger yellowish plagioclase grains (up to 6 mm across) exhibiting an iridescent luster.

Petrography: (A. Irving and S. Kuehner, UWS; T. Bunch and J. Wittke, NAU) Based upon examination of thin sections of all separate stones, this meteorite is texturally heterogeneous. Terrestrial weathering has resulted in partial replacement of metal and minor grain boundary staining by iron hydroxides. The overall texture is protogranular, but there are large porphyroclasts of anorthite, spinel, and polygranular olivine. Anorthite also occurs as narrow (10–20 µm wide) coronas around spinel grains adjacent to clinopyroxene and both spinel and diopside are compositionally zoned away from the coronas. Texturally, this meteorite is very different from most angrites.


This gorgeous meteorite would make a fine addition to any collection.  This material is very solid, takes an excellent polish and displays nicely.   I spend a great deal of time preparing these meteorites for your collection.

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Thanks, John Humphries, P.O. BOX 310, Tombstone, AZ 85638