This new meteorite fell to Earth on December 16, 2012. At least 50-60 stones were recovered, with a total known weight of approximately 6 kilograms. The meteorite appears to be an equilibrated L-chondrite, with stunning, pristine fusion crust and a brecciated interior.
The strewn-field is close to the Morocco-Mauritania or Morocco-Algeria border, near a town called Mheiriz (or Mehaires, depending on which map you use). Mheiriz is in Eastern Morocco, near Smara.
Photo by United Nations Photo on Flickr. Smara/Mheiriz region, Morocco.
Different stones from this fall have been classified as both L4 and L6. It appears to be a brecciated impact melt, with many stones exhibiting large (>1cm) patches and veins of black, melted chondritic material. I would assume that the meteorite will be classified as an L4-6 breccia, but it is hard to tell whether the official classification will reflect the full range of material within this meteorite.
The meteorite has been formally approved as two separate meteorites: NWA 7827 (L4), and Mreïra (L6). Unfortunately, short-lived radionuclides from these stones were not examined, so although many of the stones show no evidence for weathering and exhibit impact scars, the fall date was not analytically constrained and the meteorite has been approved as "a possible fall associated with the fireball of December 16, 2012."
1.809 gram individual, 70% primary crust, 25% secondary crust - $25
This stone is so fresh that it's still iridescent when brightly illuminated (see first and second photos).
1.809 gram individual, 70% primary crust, 25% secondary crust - $25
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3.000 gram fragment, 20% primary crust - $35
 
Great brecciation, some irridescence.
3.000 gram fragment, 20% primary crust - $35
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3.378 gram individual, 95% primary crust - $40
Great crust and impact marks. Slight orientation (trailing face is second photo). Looks like it fell yesterday.
3.378 gram individual, 95% primary crust - $40
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7.688 gram individual - 97% primary crust - $90
7.688 gram individual - 97% primary crust - $90
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14.857 gram individual - 20% primary crust, 40% thick secondary crust, 30% thin secondary crust - $175
14.857 gram individual - 20% primary crust, 40% thick secondary crust, 30% thin secondary crust - $175
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17.888 gram individual, 97% primary crust - $215
 
Stunning black crust, impact marks. Thin metal vein visible at top left of last photo.
17.888 gram individual, 97% primary crust - $215
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18.309 gram individual, 98% primary crust - $220
Perfect fusion crust, melted metal bleb, and great impact-adhering soil. Slight flight-marking; thicker, textured fusion crust visible in the first photo.
18.309 gram individual, 98% primary crust - $220
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22.643 gram individual, 97% primary crust - $250
Great crust, slight scuffing from impact.
22.643 gram individual, 97% primary crust - $250
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61.684 gram individual, 85% primary crust - $725
Amazingly textured crust with fine froth and iridiscent blue spots. One side shows scuffing caused by an impact with rocky ground.
The larger chip has reddened at the edges due to exposure to heat; it was a late atmospheric break.
61.684 gram individual, 85% primary crust - $725
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65.722 gram individual, 97% primary fusion crust - $750
Perfect patchily iridescent blue crust, fine froth on various sides, and a few chips and red soil scuffs from impact.
65.722 gram individual, 97% primary fusion crust - $750
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3.780 gram individual, 65% primary crust, 30% thick secondary crust - sold
4.435 gram individual - 65% primary crust, 35% secondary crust - sold
21.547 gram individual, 98% primary crust - sold
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