Νουνίτης. Ain Ben Tili 004. Μη ομαδοποιημένος ακοντρίτης, - 2.13 g - (1)
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Dunite. Ain Ben Tili 004 είναι μετεωρίτης αγωνόντητας μη ομαδοποιημένος από Tiris Zemmour, Μαυριτανία, βάρος 2,13 g.
Περίληψη με τη βοήθεια τεχνητής νοημοσύνης
Περιγραφή από τον πωλητή
Ain Ben Tili 004 25.46857 N, 10.13846 W
Tiris Zemmour, Mauritania
Find: 2022
Classification: Ungrouped achondrite
History: The meteorite was found 2022 in northern Mauritania and subsequently purchased by Mohamed Ali Loud from Alian Muftah at the 2024 Munich mineral fair.
Physical characteristics: Many light grayish fragments some of which partly covered with black fusion crust.
Petrography: Achondritic breccia composed of a great variety of up to 7 mm sized euhedral to subhedral mineral fragments in a fine-grained cataclastic matrix of related material. Most abundant are compositionally homogeneous olivine (about 85 vol%), exsolved pyroxene (about 8 vol%) and feldspar (about 2 vol%) grains. Zoned olivines are rare. Accessories (about 5 vol%) include silica, chromite, FeS, kamacite, and taenite. Contains augite-chromite symplectites.
Geochemistry: compositions of individual olivine grains: Fa14.4±0.1, FeO/MnO=39±2, n=7; Fa17.2±0.1, FeO/MnO=39±2, n=7; Fa20.4±0.1, FeO/MnO=40±2, n=7, Fa36.0±0.2, FeO/MnO=46±3, n=7; zoned olivine: Fa10.8±1.0 (Fa10.1-12.7, FeO/MnO=39±3, n=7); Ca-pyroxene in symplectites: Fs5.4±0.1Wo45.2±0.2, FeO/MnO=14±2, n=7); low-Ca pyroxene host to exsolution lamellae: Fs31.6±0.1Wo3.1±0.1 (Fs31.5-31.8Wo3.0-3.1, FeO/MnO=26-29, n=7); Ca-pyroxene exsolution lamellae: Fs14.4±0.3Wo42.4±0.2 (Fs13.8-14.7Wo42.2-42.6, FeO/MnO=21-24, n=7); feldspar: An63.8-65.0Ab33.6-34.9Or1.3-1.5, n=7; chromite: Mg#31.4±2.8, Cr#75.1±1.9, n=10
Classification: Ungrouped achondrite, dunitic breccia. Likely paired with NWA 15717 and related meteorites.
Shock stage: low
Weathering grade: low
Classifier: A. Greshake, MNB.
This lot comes with certificate of authenticity.
Thanks for your interest.
Ain Ben Tili 004 25.46857 N, 10.13846 W
Tiris Zemmour, Mauritania
Find: 2022
Classification: Ungrouped achondrite
History: The meteorite was found 2022 in northern Mauritania and subsequently purchased by Mohamed Ali Loud from Alian Muftah at the 2024 Munich mineral fair.
Physical characteristics: Many light grayish fragments some of which partly covered with black fusion crust.
Petrography: Achondritic breccia composed of a great variety of up to 7 mm sized euhedral to subhedral mineral fragments in a fine-grained cataclastic matrix of related material. Most abundant are compositionally homogeneous olivine (about 85 vol%), exsolved pyroxene (about 8 vol%) and feldspar (about 2 vol%) grains. Zoned olivines are rare. Accessories (about 5 vol%) include silica, chromite, FeS, kamacite, and taenite. Contains augite-chromite symplectites.
Geochemistry: compositions of individual olivine grains: Fa14.4±0.1, FeO/MnO=39±2, n=7; Fa17.2±0.1, FeO/MnO=39±2, n=7; Fa20.4±0.1, FeO/MnO=40±2, n=7, Fa36.0±0.2, FeO/MnO=46±3, n=7; zoned olivine: Fa10.8±1.0 (Fa10.1-12.7, FeO/MnO=39±3, n=7); Ca-pyroxene in symplectites: Fs5.4±0.1Wo45.2±0.2, FeO/MnO=14±2, n=7); low-Ca pyroxene host to exsolution lamellae: Fs31.6±0.1Wo3.1±0.1 (Fs31.5-31.8Wo3.0-3.1, FeO/MnO=26-29, n=7); Ca-pyroxene exsolution lamellae: Fs14.4±0.3Wo42.4±0.2 (Fs13.8-14.7Wo42.2-42.6, FeO/MnO=21-24, n=7); feldspar: An63.8-65.0Ab33.6-34.9Or1.3-1.5, n=7; chromite: Mg#31.4±2.8, Cr#75.1±1.9, n=10
Classification: Ungrouped achondrite, dunitic breccia. Likely paired with NWA 15717 and related meteorites.
Shock stage: low
Weathering grade: low
Classifier: A. Greshake, MNB.
This lot comes with certificate of authenticity.
Thanks for your interest.
Λεπτομέρειες
Αριθμός αντικειμένων
1
όνομα μετεωρίτη
Dunite. Ain Ben Tili 004.
τύπος μετεωρίτη
Ungrouped Achondrite,
Συμπληρωματικά στοιχεία
Do not reserve price.
Βάρος
2.13 g
Προέλευση (Περιοχή / Πόλη)
Tiris Zemmour
Χώρα
Μαυριτανία
Πωλήθηκε από τον/-ην
