碳质 CM2 陨石,NWA 15523。 无保留价。 - 2.34 g





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NWA 15523 隕石,碳質 CM2 隕石,產自哈西基比(Hassi Khebi),阿爾及利亞,西北非,重量 2.34 g。
賣家描述
Northwest Africa 15523 (NWA 15523)
Purchased: 2022 May
Classification: Carbonaceous chondrite (CM2)
History: 据报道于2022年初在阿尔及利亚哈西·赫比发现。
Petrography: (K. Metzler, IfP) 包裹在细粒黑质基质中的陨石团粒、陨粒碎片、CAIs 和 PCP(TCI) 粒子(约占基质体积的50%)。“大多数陨石团粒属于化学型 I。陨石粒径大多在 50–300 μm;也有少数陨粒粒径可达 1.5 mm。许多陨粒被细粒尘埃包覆。附件矿物有战利铁( troilite)、槲铁( pentlandite)和方解石。
Geochemistry: Mineral compositions and geochemistry: Mean olivine composition: Fa7.2±12.1 (Fa0.3-40.7); n=13. Mean composition of low-Ca pyroxene: Fs1.4±0.7 Wo2.4±1.8 (Fs0.7-2.7 Wo0.9-5.7; n=10)
Classification: CM2 chondrite based on the occurrence of CAIs and PCP (TCI) particles, small chondrule size, chondrule-matrix ratio, and mineral chemistry.
Shock stage: C-S2
Weathering grade: Moderate
Classifier: K. Metzler, IfP.
This lot has no reserve price and comes with its certificate of authenticity.
Thanks for your interest.
Northwest Africa 15523 (NWA 15523)
Purchased: 2022 May
Classification: Carbonaceous chondrite (CM2)
History: 据报道于2022年初在阿尔及利亚哈西·赫比发现。
Petrography: (K. Metzler, IfP) 包裹在细粒黑质基质中的陨石团粒、陨粒碎片、CAIs 和 PCP(TCI) 粒子(约占基质体积的50%)。“大多数陨石团粒属于化学型 I。陨石粒径大多在 50–300 μm;也有少数陨粒粒径可达 1.5 mm。许多陨粒被细粒尘埃包覆。附件矿物有战利铁( troilite)、槲铁( pentlandite)和方解石。
Geochemistry: Mineral compositions and geochemistry: Mean olivine composition: Fa7.2±12.1 (Fa0.3-40.7); n=13. Mean composition of low-Ca pyroxene: Fs1.4±0.7 Wo2.4±1.8 (Fs0.7-2.7 Wo0.9-5.7; n=10)
Classification: CM2 chondrite based on the occurrence of CAIs and PCP (TCI) particles, small chondrule size, chondrule-matrix ratio, and mineral chemistry.
Shock stage: C-S2
Weathering grade: Moderate
Classifier: K. Metzler, IfP.
This lot has no reserve price and comes with its certificate of authenticity.
Thanks for your interest.

