月球端切 - 无底价 陨石 NWA 15018(长石角砾岩) - 1.3 g
编号 88496665
Northwest Africa 15018 (NWA 15018)
(North West Africa)
Purchased: Apr 2022
Classification: Lunar meteorite (feldspathic breccia)
Physical characteristics: Many small grayish fragments without fusion crust.
Petrography: The meteorite displays a dark grayish interior and is a polymict breccia predominantly composed of up to 3 mm sized feldspathic and melt clasts plus mineral fragments consolidated by abundant finely recrystallized feldspathic matrix. Dominant minerals are olivine, augite, pigeonite, and calcic plagioclase. Minor phases are silica, ilmenite and FeS.
Geochemistry: olivine: Fa27.7±1.7 (Fa26.3-30.6, FeO/MnO=87±4, n=12); augite: Fs17.4±1.2Wo34.9±1.4 (Fs15.3-19.1Wo33.2-37.5, FeO/MnO=47±4, n=9); pigeonite: Fs25.3±1.6Wo9.3±2.2 (Fs23.0-28.4Wo5.9-13.3, FeO/MnO=53±5, n=11); calcium plagioclase: An97.9±0.1 (An97.6-98.1, n=10)
Northwest Africa 15018 (NWA 15018)
(North West Africa)
Purchased: Apr 2022
Classification: Lunar meteorite (feldspathic breccia)
Physical characteristics: Many small grayish fragments without fusion crust.
Petrography: The meteorite displays a dark grayish interior and is a polymict breccia predominantly composed of up to 3 mm sized feldspathic and melt clasts plus mineral fragments consolidated by abundant finely recrystallized feldspathic matrix. Dominant minerals are olivine, augite, pigeonite, and calcic plagioclase. Minor phases are silica, ilmenite and FeS.
Geochemistry: olivine: Fa27.7±1.7 (Fa26.3-30.6, FeO/MnO=87±4, n=12); augite: Fs17.4±1.2Wo34.9±1.4 (Fs15.3-19.1Wo33.2-37.5, FeO/MnO=47±4, n=9); pigeonite: Fs25.3±1.6Wo9.3±2.2 (Fs23.0-28.4Wo5.9-13.3, FeO/MnO=53±5, n=11); calcium plagioclase: An97.9±0.1 (An97.6-98.1, n=10)
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Nice slice of L3 chondrite! When receiving, it looks less impressive then on photo's, but most of those are taken with polarized filter I suppose. Real thing still impressive, even with my glasses on!
查看翻译Parfait comme d'habitude ;)
查看翻译Tutto bene, veloce e ben protetto. Grazie mille anche per il suo contenitore.
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