Hello and thank you for viewing our listing. Today you are purchasing one half stone of NWA8291 Achondrite Mesosiderite Meteorite from North West Africa. Achondrite Mesosiderite's are quite rare and are not of the normal type of meteorites that come around everyday. I have only classified 3 I believe to date, not an easy one to find! Below is the analytical data from the NomCom database. My catalog number is G509-0017 and weighs in at 2.43 grams and comes with my card of authenticity. I have designed a COA for NWA8291, as I do with all of my classifications. The specimen you see pictured is the exact specimen you will receive. More specimens are available on my web site. Each card comes with catalog number, weight and my signature of authenticity. Thanks again for viewing and please take time to view my web site, changes almost daily, yes I am that busy right now, lol. Cheers!

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Name: Northwest Africa 8291
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8291
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 296 g
This is 1 of 145 approved meteorites classified as Mesosiderite.

Northwest Africa 8291 (NWA 8291)

(Northwest Africa)

Purchased: 2013

Classification: Mesosiderite

History: Purchased by Brahim Tahiri from a Moroccan meteorite hunter and sent to his partner Sean Tutorow for classification, 2013.

Physical characteristics: 45 small stones that are visually identical, irregular dark exterior with some iron staining, saw cut reveals mm-sized, bright metal grains set in dark brown silicate matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows approximately 70% silicate minerals and 30% metal. Silicate mineralogy ~70% pyroxene, ~25% plagioclase, accessory silica and olivine. Silicate grain sizes up to 300 μm. Metal: ~90% kamacite, ~10% taenite, 5-10% of total metal is oxidized. Metal domains up to 3 mm. Many metal/oxide veinlets and blebs throughout.

Geochemistry: (C. Agee and H. Miley, UNM) EMPA. Low Ca-pyroxene Fs32.4±7.0Wo2.7±0.7, Fe/Mn=28±2 n=9, olivine Fa31.7.7, Fe/Mn=43, n=1, plagioclase Or0.5±0.1Ab9.0±1.5An90.5±1.6, n=7.

Classification: Mesosiderite

Specimens: 20.95 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.


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Please take time to view eegooblago, that is our MAIN site for meteorites and classified material, on the web. Cube is for reference, not included in the auction.


Thanks again for viewing and our shipping is like this, the first is usually only $2.95 and .50 cents for each additional item, unless over 60 grams, then 1.00 per item. Everyone is given the opportunity to shop for two full weeks without ever exceeding 10.00 shipping, no matter how many you win or buy over the two week period, even earth stones! Cheers and thanks again for stopping by.