Meteorite Gourara 004. HED, Eucrite - 5.08 g - (1)
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Meteorito Gourara 004, eucrita HED, meteorito de tipo achondrita procedente de Ghardaïa, Argelia, con un peso de 5,08 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
5,08 g
Origen (región / ciudad)
Ghardaia
País de origen
Argelia
Vendido por
