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NWA6697 Official Carbonaceous C2-ung - G090-0004 - 6.26g COA - the 13th CLASSED

EUR 2.118,44 Buy It Now Unsold, EUR 30,51 Shipping

Seller: eegooblago_meteorites (4.549) 99.8%, Location: Greeley, Colorado, Ships to: Worldwide, Item: 122182854727 Hello and thank you for viewing our listing. Today you are purchasing one individual specimen of NWA6697 Carbonaceous C2-ungrouped Chondrite Meteorite from Mauritania. C2-ungrouped is one of the most rare of all meteorites EVER to be classified. There are a total of 16 official and of that 16, 8 are Antarctic, which means, unobtainable to the general public. Of the remaining 8, maybe 3 or 4 you might find available for sale. I have been repeatedly asked to list some of my super rare C2-ung and here you go. These specimens ALL had a small piece removed for testing at UCLA. All 9 specimens had a small amount taken off to double check them, that they paired, and were the same C2-ung. Special testing was done in South Korea on the specimens. I plucked CAI material from the largest to have studied also by UCLA. This is one of the most important classifications of my career and was THE first blow your mind classification I had ever go thru! Below is the analytical data from the NomCom database. My catalog number is G090-0004 and weighs in at 6.26 grams and comes with my card of authenticity. I have designed a COA for NWA6697, as I do with all of my classifications. The specimen you see pictured is the exact specimen you will receive. 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. Cheers! ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Name: Northwest Africa 6697 This is an OFFICIAL meteorite name. Abbreviation: NWA 6697 Observed fall: No Year found: 2010 Country: Mauritania Mass: 67.1 g This is 1 of 16 approved meteorites classified as C2-ung. Northwest Africa 6697 (NWA 6697) MauritaniaPurchased: 2010 Classification: Carbonaceous chondrite (C2, ungrouped) Petrography: Aqueously altered, ~35 vol% phyllosilicate-rich matrix. Chondrules lack glassy mesostasis. Opaques in the matrix are mainly iron-sulfide and magnetite. Many chondrules are surrounded by ~50 μm phyllosilicate-rich rims. Sparse metallic Fe-Ni in chondrules; metal grains are small and surrounded by sulfide and/or magnetite. Lacks coarse metal grains in chondrules and matrix. Chondrules ~800 μm (compared to 270 µm for CM chondrites). Many chondrules have irregular convoluted boundaries and abundant chondrule fragments in the matrix. Most chondrules are type-I PO and POP and a few BO. AOIs range in size from ~500 to ~1500 μm; they constitute ~2 vol.% of the rock. Geochemistry: Oxygen isotopes (Byeon-Gak Choi, Seoul-NU): Replicate analyses of acid-washed whole rock samples by laser fluorination gave δ18O = 2.653, 2.475; δ17O = -2.525, -2.358; Δ17O = -3.923, -3.633 (all per mil). Classification: Carbonaceous chondrite, ungrouped, petrologic grade 2. The whole-rock O-isotopic composition is on the CCAM line, indicating that the rock is not closely related to CR chondrites. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 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. Morocco: Meteorite, Rare: Cabinet Specimen, NWA: North West Africa, Gem Case: Card of Authenticity (COA), Official Name: Officially Classified Meteorite, Carbonaceous: Carbonaceous Chondrite, eegooblago meteorites: s.tutorow collection, NWA6697: NWA 6697, NWA6697 C2-ung: NWA 6697 C2-ung, 13th EVER CLASSIFIED: 16 OFFICIALLY OFFICIAL, 8 available if you are lucky!: 8 are Antactic, unobtainable, C2-ung: Carbonaceous C2-ungrouped

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