Meteorite Gourara 004. HED, Eucrite - 4 g - (1)
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Meteorito Gourara 004, un meteorito HED eucrita procedente de Ghardaïa, Argelia, con un peso de 4 g.
Resumen redactado con la ayuda de la IA
Descripción del vendedor
Gourara 004 29°34’02.36’’N, 02°22’19.75’’E
Ghardaia, Algeria
Find: 2024 Jun 10
Classification: HED achondrite (Eucrite)
History: Many fresh pieces were found by a meteorite hunting group on June 10, 2024, in Algeria. The material was later sold from Feidalah Said to Mohamed Ali Loud.
Physical characteristics: Many grayish fragments largely covered with fusion crust.
Petrography: Brecciated basalt composed of up to 1 cm sized angluar to subrounded bulk rock clasts in fine-grained clastic matrix of related material. Clasts show intersertal textures and are predominatly composed of up to 700 µm sized compositionally zoned and finely exsolved pyroxenes plus often lath-shaped calcic plagioclase. Minor phases include silica, chromite, ilmenite, FeS, and Ni-free metallic iron.
Geochemistry: zoned low-Ca pyroxene: Fs43.9±7.9Wo7.3±1.0 (Fs36.7-54.6Wo5.5-8.8, FeO/MnO=25-31, n=7); augite exsolutions: Fs27.9±0.8Wo41.4±0.7 (Fs26.9-28.8Wo39.9-42.2, FeO/MnO=27-29, n=7); calcic plagioclase: An85.3±1.7 (An84.0-89.2, n=7)
Shock stage: low
Weathering grade: moderate
Classifier: A. Greshake, MNB
This lot comes with certificate of authenticity.
Thanks for your interest.
Gourara 004 29°34’02.36’’N, 02°22’19.75’’E
Ghardaia, Algeria
Find: 2024 Jun 10
Classification: HED achondrite (Eucrite)
History: Many fresh pieces were found by a meteorite hunting group on June 10, 2024, in Algeria. The material was later sold from Feidalah Said to Mohamed Ali Loud.
Physical characteristics: Many grayish fragments largely covered with fusion crust.
Petrography: Brecciated basalt composed of up to 1 cm sized angluar to subrounded bulk rock clasts in fine-grained clastic matrix of related material. Clasts show intersertal textures and are predominatly composed of up to 700 µm sized compositionally zoned and finely exsolved pyroxenes plus often lath-shaped calcic plagioclase. Minor phases include silica, chromite, ilmenite, FeS, and Ni-free metallic iron.
Geochemistry: zoned low-Ca pyroxene: Fs43.9±7.9Wo7.3±1.0 (Fs36.7-54.6Wo5.5-8.8, FeO/MnO=25-31, n=7); augite exsolutions: Fs27.9±0.8Wo41.4±0.7 (Fs26.9-28.8Wo39.9-42.2, FeO/MnO=27-29, n=7); calcic plagioclase: An85.3±1.7 (An84.0-89.2, n=7)
Shock stage: low
Weathering grade: moderate
Classifier: A. Greshake, MNB
This lot comes with certificate of authenticity.
Thanks for your interest.
Datos
Número de artículos
1
Nombre del meteorito
Meteorite Gourara 004
Tipos de meteoritos
HED, Eucrite
Suplemento
Do not reserve price.
Peso
4 g
Origen (región / ciudad)
Ghardaia
País de origen
Argelia
Vendido por
