Bechar 008 - HED howardita - calidad museística - 37.22 g
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Seleccionado por Francesco Moser
Más de 20 años coleccionando meteoritos; excurador y restaurador de museo.
Estimación € 250 - € 280
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Bechar 008 es una meteorito Howardita de calidad museo procedente de Bechar, Argelia, con un peso de 37,22 g y certificado de autenticidad y estuche de exhibición.
Resumen redactado con la ayuda de la IA
Descripción del vendedor
Writeup from MB 112:
Bechar 008 30.25293 N, 3.53005 W
Bechar, Algeria
Purchased: 2022 Jul
Classification: HED achondrite (Howardite)
History: Reportedly a group of meteorite hunters found several fragments of this material in Algeria, in an area called Alagla (near Abadla) in July 2022. Several months later Mohamed Ali Loud bought a total of 1700 g from a meteorite dealer in Mauritania.
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), the Global Meteorite Association (#G0129) and have been collecting meteorites for more than 16 years.
Writeup from MB 112:
Bechar 008 30.25293 N, 3.53005 W
Bechar, Algeria
Purchased: 2022 Jul
Classification: HED achondrite (Howardite)
History: Reportedly a group of meteorite hunters found several fragments of this material in Algeria, in an area called Alagla (near Abadla) in July 2022. Several months later Mohamed Ali Loud bought a total of 1700 g from a meteorite dealer in Mauritania.
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), the Global Meteorite Association (#G0129) and have been collecting meteorites for more than 16 years.
Datos
Tipos de meteoritos
Bechar 008 - HED Howardite - Museum Quality
Suplemento
Certificate of authenticity and display case
Peso
37,22 g
País de origen
Argelia
Vendido por
