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Roll Overs:
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12.146 kg. Eucrite
TKW 12.16 kg. Fall not observed. Found December 2019, Tiris Zemmour, Mauritania.
EHOH = El Hassan Ould Hamed
  
Naji writes:
From the MetBul:
History: Found in December 2019 at a site NE of Imourene, Mauritania, and purchased a few weeks later by Mohamed Brahim Sueilem and Naji Ben Faraji from a dealer in Tindouf, Algeria.
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Fresh protogranular gabbroic assemblage (grainsize up to 3.4 mm) of predominantly exsolved pigeonite and calcic plagioclase, together with accessory silica polymorph, Ti-Al-chromite, ilmenite, baddeleyite, zircon and troilite. Host low-Ca pyroxene in pyroxene grains exhibits distinctive polysynthetic twinning. Chromite and ilmenite grains occur mainly as inclusions within pyroxenes.
Geochemistry: Low-Ca pyroxene host (Fs57.2-59.0Wo5.3-4.1, FeO/MnO = 29-33, N = 4), augite exsolution lamellae (Fs26.6-27.1Wo42.5-43.4, FeO/MnO = 29-31, N = 4), plagioclase (An89.2-90.7Or0.4-0.3, N = 3). Oxygen isotopes (K. Ziegler, UNM):analyses of acid-washed subsamples by laser fluorination gave, respectively, δ17O 1.652, 1.812, 1.789; δ18O 3.676, 3.963, 3.944; Δ17O -0.289, -0.280, -0.293 per mil. |
Click to view larger photos
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Found at the arrow (green or red) on the map below
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matthias
7/22/2020 4:56:53 PM |
Thanks, Herbert. I agree that giving an individual name - not NWA - is okay in the case the find-position and -situation of a meteorite is precisely documented.
@Paul - got you : - ) |
Steve Brittenham
7/22/2020 1:16:58 PM |
I know I'm showing my ignorance here (I have so much to learn about meteorites!), but is the blue material in photo 4 something that got into it after impact, or is it intrinsic to the meteorite? Either way, great stone! |
John Divelbiss
7/22/2020 11:53:30 AM |
love the first photo Naji... that is so cool. |
Paul Swartz
7/22/2020 9:57:54 AM |
Matthias - I meant to include that factoid about EHOH but forgot:( It's there now. |
Bernd Pauli
7/22/2020 7:08:39 AM |
Amazing eucrite! Thanks for sharing! |
Twink Monrad
7/22/2020 6:11:46 AM |
Beautiful, nice color |
Herbert
7/22/2020 4:57:49 AM |
Nice stone, thanks for sharing!
@Matthias: Click on the 'MetBul Link' above, and you will see that EHOH 001 is actually an (official) abbreviation for 'El Hassan Ould Hamed 001' |
matthias
7/22/2020 4:35:53 AM |
Great stone with interesting surface features and large areas of remaining fresh crust. Congratulations, Naji, and thank you for showing it here. But what does EHOH 001 mean? Shouldn't it be a NWA classification with number? |
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