Météorite NWA 14131. HED, Eucrite - 9.7 g - (1)
05
jours
17
heures
42
minutes
31
secondes
 | 1 € |
|---|
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Northwest Africa 14131 (NWA 14131) est une météorite eucrite de type HED provenant d'Afrique du Nord‑Ouest, pesant 9,70 g et constituée d’une brèche grossière avec des clastes basaliques et des fragments minéraux.
Résumé assisté par IA
Description fournie par le vendeur
Northwest Africa 14131 (NWA 14131)
Purchased: 2021 May
Classification: HED achondrite (Eucrite)
History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania in May, 2021.
Physical characteristics: Many dark grayish fragments some of which almost completely covered with fusion crust.
Petrography: The meteorite is a coarse-grained breccia composed of up to 6 mm sized basaltic clasts and up to 2 mm sized mineral fragments set in fine-grained clastic matrix. Mineral phases are predominantly exsolved pyroxene and mostly blocky calcic plagioclase grains. Minor phases include silica, chromite, ilmenite, fayalite, and troilite. No metallic iron has been detected.
Geochemistry: low-Ca pyroxene: Fs63,5±0,7Wo2,9±1,1 (Fs62,2-64,1Wo1,6-4,8, FeO/MnO=29-31, n=5); Ca-pyroxene: Fs30,8±0,5Wo42,5±0,8 (Fs30,4-31,8Wo41,4-43,7, FeO/MnO=27-30, n=5); calcic plagioclase: An82,1±7,9 (An71,1-91,3, n=5).
Shock stage: moderate
Weathering grade: low
Classifier: A. Greshake, MNB.
This lot comes with certificate of authenticity.
Thanks for your interest.
Northwest Africa 14131 (NWA 14131)
Purchased: 2021 May
Classification: HED achondrite (Eucrite)
History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania in May, 2021.
Physical characteristics: Many dark grayish fragments some of which almost completely covered with fusion crust.
Petrography: The meteorite is a coarse-grained breccia composed of up to 6 mm sized basaltic clasts and up to 2 mm sized mineral fragments set in fine-grained clastic matrix. Mineral phases are predominantly exsolved pyroxene and mostly blocky calcic plagioclase grains. Minor phases include silica, chromite, ilmenite, fayalite, and troilite. No metallic iron has been detected.
Geochemistry: low-Ca pyroxene: Fs63,5±0,7Wo2,9±1,1 (Fs62,2-64,1Wo1,6-4,8, FeO/MnO=29-31, n=5); Ca-pyroxene: Fs30,8±0,5Wo42,5±0,8 (Fs30,4-31,8Wo41,4-43,7, FeO/MnO=27-30, n=5); calcic plagioclase: An82,1±7,9 (An71,1-91,3, n=5).
Shock stage: moderate
Weathering grade: low
Classifier: A. Greshake, MNB.
This lot comes with certificate of authenticity.
Thanks for your interest.
Détails
Nombre d’objets
1
Nom météorite
Meteorite NWA 14131.
Type météorite
HED, Eucrite
Supplément
Do not reserve price.
Poids
9,7 g
Pays d’origine
NWA
Vendu par
