火星陨石(含橄榄石的舍尔戈特岩) NEA 145 - 1 g





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火星陨石(橄榄石含量的舍格丁石陨石),NEA 145,产自利比亚,东北非;重量1 g;附认证书。
卖家的描述
Northeast Africa 145 (NEA 145)
Libya
Purchased: 2024
Classification: Martian meteorite (Shergottite)
History: 报告称在 2024 年由陨石猎人于利比亚发现,并由 Ali Muftah 购买。
Petrography: (K. Metzler, IfP)橄榄辉长岩岩基,主要是延长的辉石晶粒,尺寸达到 3.5 mm(约 50%),还含较少量的橄榄石(约 25%)和晶间斜长石(约 25%)。橄榄石晶粒呈igneous带隙变化,核心至边缘Fe含量逐渐增高。辉石显示斑块状化学分区。斜长石已完全被冲击转变为 masking(maskelynite)。配晶为釹铁矿、Cr-尖晶石、梅里赖石及 FeS。
Geochemistry: Mineral compositions and geochemistry: Mean mineral compositions: Olivine Fa49.6±5.2 (Fa43.0-60.3); Fe/Mn (at.): 54.7; n=11. Pyroxene Fs32.0±7.0Wo19.8±9.0 (Fs20.6-39.6Wo7.6-34.3); Fe/Mn (at.): 31.5; n=14. Plagioclase (maskelynite) An49.9±2.9Or2.9±0.6 (An43.9-53.0Or2.0-3.9); n=11.
Classification: Martian (olivine-bearing shergottite), based on texture and mineral chemistry.
Shock stage: M-S4
Weathering grade: low
Classifier: K. Metzler, IfP.
This lot comes with certificate of authenticity.
Thanks for your interest.
Northeast Africa 145 (NEA 145)
Libya
Purchased: 2024
Classification: Martian meteorite (Shergottite)
History: 报告称在 2024 年由陨石猎人于利比亚发现,并由 Ali Muftah 购买。
Petrography: (K. Metzler, IfP)橄榄辉长岩岩基,主要是延长的辉石晶粒,尺寸达到 3.5 mm(约 50%),还含较少量的橄榄石(约 25%)和晶间斜长石(约 25%)。橄榄石晶粒呈igneous带隙变化,核心至边缘Fe含量逐渐增高。辉石显示斑块状化学分区。斜长石已完全被冲击转变为 masking(maskelynite)。配晶为釹铁矿、Cr-尖晶石、梅里赖石及 FeS。
Geochemistry: Mineral compositions and geochemistry: Mean mineral compositions: Olivine Fa49.6±5.2 (Fa43.0-60.3); Fe/Mn (at.): 54.7; n=11. Pyroxene Fs32.0±7.0Wo19.8±9.0 (Fs20.6-39.6Wo7.6-34.3); Fe/Mn (at.): 31.5; n=14. Plagioclase (maskelynite) An49.9±2.9Or2.9±0.6 (An43.9-53.0Or2.0-3.9); n=11.
Classification: Martian (olivine-bearing shergottite), based on texture and mineral chemistry.
Shock stage: M-S4
Weathering grade: low
Classifier: K. Metzler, IfP.
This lot comes with certificate of authenticity.
Thanks for your interest.

