Abteh 002 is a CK6 weighing just 41 grams, discovered in the Western Sahara in the Chwichiya region by Aadi Ouhamdouch in 2023.
This carbonaceous meteorite is oriented. It is also covered with lichens on the fusion crust.
A rare and unique piece !
Writeup from MB 113:
Abteh 002 27°40’52.89″N, 11°52’01.72″W
South, Morocco
Find: 2023 Feb
Classification: Carbonaceous chondrite (CK6)
History: The meteorite was found by Aadi Ouhamdouch in February 2023 in the Chwichiya region of Morocco. It was later bought by Jean Redelsperger from Zaid Oualguirah in 2023.
Physical characteristics: Single oriented crusted stone. Lichen covers part of the fusion crust.
Petrography: (J. Gattacceca, CEREGE) Chondrite with large chondrules set in a recrystallized matrix containing plagioclase with average size >50 µm. Opaque minerals are abundant magnetite, and troilite.
Abteh 001, a CM2 weighing just 21.3 grams, was discovered in the Chwichiya region of Western Sahara by Lahcen Ousaleh in 2023.
This carbonaceous meteorite is extremely light.
Abteh 001 27°51’10.5″N, 11°52’50.4″W
South, Morocco
Find: 2023 Jun 20
Classification: Carbonaceous chondrite (CM2)
History: Found in Morocco near Chwichiya by Lahcen Ousaleh on June 06, 2023. Bought by Jean Redelsperger from Zaid Oualguirah in 2023 in Morocco.
Physical characteristics: Black stone with remanents of fusion crust. Cut surface reveals a dark fine-grained interior, with small chondrules.
Petrography: (J. Gattacceca, CEREGE) Chondrules with average apparent diameter ~200µm and chondrule fragments set in an abundant fine-grained iron-rich matrix. Opaque minerals are troilite, pyrrhotite, magnetite. Metal is found almost exclusively as inclusions in anhydrous silicates. X-ray diffraction analyses over a ~2 cm2 area on a polished section (D. Borschnek, CEREGE) reveal the presence of phyllosicilates and calcium carbonates, as typically observed in type 2 chondrites using the same experimental setup.
Geochemistry: Olivine Fa15.1±17.0, range Fa0.40-48.1 (n=7). Cr2O3 in ferroan olivine 0.40±0.18 wt% (n=6). Defocused analyses of matrix FeO 24.0±6.7 wt%, analytical total 76.1±5.0 (n=3).
Classification: Carbonaceous chondrite (CM2).
Specimens: Type specimen at CEREGE.Main mass with Jean Redelsperger.
Jdiriya 003 is a meteorite of eucrite type of only 21.4 grams, it was discovered by Zaid Oualguirah in 2019 in the Western Sahara.
Howardite meteorites come from the asteroid Vesta, an asteroid between Mars and Jupiter.
I am selling the main mass of 15.7 grams, a unique piece !
Writeup from MB 109:
Jdiriya 003 27°36’59.42″N, 10°26’48.85″W
Saguia el Hamra, Western Sahara
Find: 2019 Dec 18
Classification: HED achondrite (Eucrite)
History: Found by Zaid Oualguirah on 2019 Dec 18.
Physical characteristics: A single crusted stone. Cut surface reveals a light homogeneous interior with ~500 µm plagioclase and pyroxene grains.
Petrography: ( J. Gattacceca, CEREGE) Igneous rock with subophitic texture. Main minerals are pyroxene (with both fine- and large-scale exsolutions) and plagioclase, with typical grain size 400 µm. Other minerals: chromite, ilmenite, metal, troilite, silica.
NWA 13702 is a CK5 type meteorite with very large chondrules of only 34.5 grams.
The reference fall is the Karoonda meteorite that fell in 1930 in Australia.
Writeup from MB 110 :
Northwest Africa 13702 (NWA 13702)
Morocco
Purchased: 2020
Classification: Carbonaceous chondrite (CK5)
History: Bought from Mohamed El Guirah in Zagora in 2020.
Physical characteristics: A single stone with fusion crust and a grey interior.
Petrography: (J. Gattacceca, CEREGE) Recrystallized chondrite with large chondrules set in a recrystallized matrix. Opaque minerals are Cr-bearing magnetite and troilite.
History: Bought from Zaid Oualguirah in April 2019.
Physical characteristics: Stone with fusion crust. Interior is brown, with visible chondrules.
Petrography: (J. Gattacceca, CEREGE) Equilibrated ordinary chondrite with average plagioclase size below 50 µm. Matrix is scarce and inter-chondrule porosity is high, making chondrules well-delineated.
Jdiriya 004 is a rare and fresh rumuruti R3 chondrite weighing only 142 grams.
Magnetic susceptibility, chondrule diameters, mineral chemistry and texture suggest that it is an R3-4 breccia.
Only 10 meteorites of this type are classified to date.
The R chondrite group does not clearly belong to any of the major chondrite classes (ordinary, carbonaceous, enstatite); R chondrites have sub-solar Mg/Si and refractory/Si ratios, oxygen isotopic compositions that are above the terrestrial fractionation line and ordinary chondrites, and strongly oxidized mineralogy.
The first R chondrite, Carlisle Lakes, was found in Australia in 1977.
The main mass, 101 grams is for sale, an exceptional piece!
