Bechar 008 (HED) 霍华石 - 32.5 g
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Bechar 008 Howardite 隕石，来自阿尔及利亚贝查（Alagla，Abadla 附近），重量32.5克，附真实性证明。
AI辅助摘要
卖家的描述
Bechar 008 30.25293 N, 3.53005 W
Bechar, Algeria
Purchased: 2022 Jul
Classification: HED achondrite (Howardite)
History: 据报道，一群陨石猎人在2022年7月于阿尔及利亚的阿拉格拉地区（靠近阿巴德拉）发现了这批材料的若干碎片。几个月后，穆罕默德·阿里·洛德在毛里塔尼亚的一家陨石商处购买了总共1700克。
Petrography (K. Metzler, IfP) Polymict achondritic breccia, consisting of mineral fragments and lithic clasts up to ~5 mm in size. These components are embedded in a fine-grained clastic matrix of related debris. Lithic clasts are dominated by eucritic gabbros and granulites, both of which show exsolved pyroxene. Mineral fragments include various eucritic pyroxenes (with and without augite exsolution lamellae), diogenitic pyroxene, feldspar, a silica polymorph, chromite, ilmenite, and Fe-Ni metal. About 10-20 vol% diogenitic components.
Geochemistry: Mineral compositions and geochemistry: Gabbro clast: Low-Ca pyroxene (host): Fs60.6±0.5 Wo3.1±0.2 (Fs59.9-61.2 Wo2.8-3.3); mean Fe/Mn (at.): 30.3; n=6. Ca-rich pyroxene (exsolution lamellae) Fs28.8±1.4 Wo40.9±1.5 (Fs27.4-30.5 Wo38.8-42.6); mean Fe/Mn (at.): 31.5; n=6. Plagioclase: An86.8±1.8 Or0.3±0.3 (An85.4-89.4 Or0.0-0.8); n=6. Diogenitic pyroxene: Fs22.5±0.5 Wo2.0±0.3 (Fs21.5-23.2 Wo1.5-2.4); mean Fe/Mn (at.): 32.6; n=7. Plagioclase fragments from clastic matrix: An89.6±3.6 Or0.5±0.4 (An82.5-95.7 Or0.1-1.1); n=11.
Classification: Howardite, based on mineral chemistry, variety of eucritic lithologies, and occurrence of >10 vol% of diogenitic components.
I am a member of the Meteoritical Society (#7743) and have collecting meteorites for more than 15 years.
Bechar 008 30.25293 N, 3.53005 W
Bechar, Algeria
Purchased: 2022 Jul
Classification: HED achondrite (Howardite)
History: 据报道，一群陨石猎人在2022年7月于阿尔及利亚的阿拉格拉地区（靠近阿巴德拉）发现了这批材料的若干碎片。几个月后，穆罕默德·阿里·洛德在毛里塔尼亚的一家陨石商处购买了总共1700克。
Petrography (K. Metzler, IfP) Polymict achondritic breccia, consisting of mineral fragments and lithic clasts up to ~5 mm in size. These components are embedded in a fine-grained clastic matrix of related debris. Lithic clasts are dominated by eucritic gabbros and granulites, both of which show exsolved pyroxene. Mineral fragments include various eucritic pyroxenes (with and without augite exsolution lamellae), diogenitic pyroxene, feldspar, a silica polymorph, chromite, ilmenite, and Fe-Ni metal. About 10-20 vol% diogenitic components.
Geochemistry: Mineral compositions and geochemistry: Gabbro clast: Low-Ca pyroxene (host): Fs60.6±0.5 Wo3.1±0.2 (Fs59.9-61.2 Wo2.8-3.3); mean Fe/Mn (at.): 30.3; n=6. Ca-rich pyroxene (exsolution lamellae) Fs28.8±1.4 Wo40.9±1.5 (Fs27.4-30.5 Wo38.8-42.6); mean Fe/Mn (at.): 31.5; n=6. Plagioclase: An86.8±1.8 Or0.3±0.3 (An85.4-89.4 Or0.0-0.8); n=6. Diogenitic pyroxene: Fs22.5±0.5 Wo2.0±0.3 (Fs21.5-23.2 Wo1.5-2.4); mean Fe/Mn (at.): 32.6; n=7. Plagioclase fragments from clastic matrix: An89.6±3.6 Or0.5±0.4 (An82.5-95.7 Or0.1-1.1); n=11.
Classification: Howardite, based on mineral chemistry, variety of eucritic lithologies, and occurrence of >10 vol% of diogenitic components.
I am a member of the Meteoritical Society (#7743) and have collecting meteorites for more than 15 years.
详细资料
陨石类型
Bechar 008 (HED) Howardite
补充物
Certificate of authenticity
重量
32,5 g
国家
阿尔及利亚
