Bubbly Jikharra 001,无球粒陨石 HED 欧克里特。 超级囊泡的。 - 15.42 g - (1)





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NWA Bubbly Jikharra 001,超 vesicular 的 HED 矿物学欧克雷特陨石,来自阿贾达比亚,利比亚,重量为 15.42 g。
卖家的描述
Jikharra 001 29°58’08.2’’ N, 21°52’05.0’’ E
Ajdabiya, Libya
Purchased: 2022
Classification: HED 不变球粒陨石(Eucrite,熔融角砾岩)
History: Numerous fragments reportedly totalling at least 2.5 metric tons, and possibly more that 3 T, were recovered in Northeastern Libya. Fifty kg of it were subsequently purchased by the main mass holder from a meteorite dealer in Libya.
History: 据报道,在利比亚东北部发现了大量碎片,总重量至少2.5公吨,甚至可能超过3公吨。随后,主要质量持有者从利比亚的一名陨石商那里购买了其中的50千克。
Physical characteristics: Many brownish fragments some of which with small patches of fusion crust.
Physical characteristics: 有许多棕褐色碎片,其中一些带有小块熔融壳。
Petrography: Achondritic melt breccia composed of several cm-sized lithic clasts set in abundant recrystallized shock melt. Lithic clasts consist of calcic plagioclase and aggregates of fine-grained, 30-70 µm sized pigeonite crystals displaying patchy compositional zoning. The melt matrix is composed of recrystallized pigeonite displaying mottled compositional zoning and fine-grained, mostly fibrous feldspar. Minor phases include silica, Ti-chromite, ilmenite, and FeS. No metallic iron has been detected.
Petrography: 无球粒陨石熔融角砾岩,由若干厘米级岩质碎块嵌入大量再结晶的冲击熔体中。岩质碎块由钙质斜长石组成,以及呈斑状分异的30-70 μm粒径的 pigeonite 晶体簇组成。熔体基质由再结晶的 pigeonite 组成,显示斑驳的成分分区,以及细粒、多为纤维状的长石。微相包括二氧化硅、铬铁矿、磁铁矿和铁硫化物。未检测到金属铁。
Geochemistry: patchily zoned pigeonite: Fs50.1±1.5Wo11.6±1.7 (Fs48.1-53.4Wo6.9-13.3, FeO/MnO=27-31, n=12); calcic plagioclase: An90.2±0.7 (An88.9-91.3, n=10)
Geochemistry: 斑驳分区的 pigeonite:Fs50.1±1.5 Wo11.6±1.7(Fs48.1-53.4、Wo6.9-13.3,FeO/MnO=27-31,n=12);钙质斜长石:An90.2±0.7(An88.9-91.3,n=10)
Shock stage: high
Weathering grade: moderate
Classifier: A. Greshake, MNB.
Shock stage: 高
Weathering grade: 中等
Classifier: A. Greshake, MNB.
This lot comes with certificate of authenticity.
Thanks for your interest.
Jikharra 001 29°58’08.2’’ N, 21°52’05.0’’ E
Ajdabiya, Libya
Purchased: 2022
Classification: HED 不变球粒陨石(Eucrite,熔融角砾岩)
History: Numerous fragments reportedly totalling at least 2.5 metric tons, and possibly more that 3 T, were recovered in Northeastern Libya. Fifty kg of it were subsequently purchased by the main mass holder from a meteorite dealer in Libya.
History: 据报道,在利比亚东北部发现了大量碎片,总重量至少2.5公吨,甚至可能超过3公吨。随后,主要质量持有者从利比亚的一名陨石商那里购买了其中的50千克。
Physical characteristics: Many brownish fragments some of which with small patches of fusion crust.
Physical characteristics: 有许多棕褐色碎片,其中一些带有小块熔融壳。
Petrography: Achondritic melt breccia composed of several cm-sized lithic clasts set in abundant recrystallized shock melt. Lithic clasts consist of calcic plagioclase and aggregates of fine-grained, 30-70 µm sized pigeonite crystals displaying patchy compositional zoning. The melt matrix is composed of recrystallized pigeonite displaying mottled compositional zoning and fine-grained, mostly fibrous feldspar. Minor phases include silica, Ti-chromite, ilmenite, and FeS. No metallic iron has been detected.
Petrography: 无球粒陨石熔融角砾岩,由若干厘米级岩质碎块嵌入大量再结晶的冲击熔体中。岩质碎块由钙质斜长石组成,以及呈斑状分异的30-70 μm粒径的 pigeonite 晶体簇组成。熔体基质由再结晶的 pigeonite 组成,显示斑驳的成分分区,以及细粒、多为纤维状的长石。微相包括二氧化硅、铬铁矿、磁铁矿和铁硫化物。未检测到金属铁。
Geochemistry: patchily zoned pigeonite: Fs50.1±1.5Wo11.6±1.7 (Fs48.1-53.4Wo6.9-13.3, FeO/MnO=27-31, n=12); calcic plagioclase: An90.2±0.7 (An88.9-91.3, n=10)
Geochemistry: 斑驳分区的 pigeonite:Fs50.1±1.5 Wo11.6±1.7(Fs48.1-53.4、Wo6.9-13.3,FeO/MnO=27-31,n=12);钙质斜长石:An90.2±0.7(An88.9-91.3,n=10)
Shock stage: high
Weathering grade: moderate
Classifier: A. Greshake, MNB.
Shock stage: 高
Weathering grade: 中等
Classifier: A. Greshake, MNB.
This lot comes with certificate of authenticity.
Thanks for your interest.

