Abteh 001 CM2 #1- 15,6 g

1560,00€

Abteh 001 est une CM2 de seulement 21,3 grammes, elle a été découverte dans le Sahara Occidental dans la région de Chwichiya par Lahcen Ousaleh en 2023.

Cette météorite carbonée a la particularité d’être extrêmement légère.

Abteh 001        27°51’10.5″N, 11°52’50.4″W

South, Morocco

Find: 2023 Jun 20

Classification: Carbonaceous chondrite (CM2)

History: Found in Morocco near Chwichiya by Lahcen Ousaleh on June 06, 2023. Bought by Jean Redelsperger from Zaid Oualguirah in 2023 in Morocco.

Physical characteristics: Black stone with remanents of fusion crust. Cut surface reveals a dark fine-grained interior, with small chondrules.

Petrography: (J. Gattacceca, CEREGE) Chondrules with average apparent diameter ~200µm and chondrule fragments set in an abundant fine-grained iron-rich matrix. Opaque minerals are troilite, pyrrhotite, magnetite. Metal is found almost exclusively as inclusions in anhydrous silicates. X-ray diffraction analyses over a ~2 cm2 area on a polished section (D. Borschnek, CEREGE) reveal the presence of phyllosicilates and calcium carbonates, as typically observed in type 2 chondrites using the same experimental setup.

Geochemistry: Olivine Fa15.1±17.0, range Fa0.40-48.1 (n=7). Cr2O3 in ferroan olivine 0.40±0.18 wt% (n=6). Defocused analyses of matrix FeO 24.0±6.7 wt%, analytical total 76.1±5.0 (n=3).

Classification: Carbonaceous chondrite (CM2).

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

En stock

Categories: , , SKU: dt-004-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-2-1-2-1-1-1-1-2-1-1-1-1-1-1-1-1-1-2-1-1-1-1-1-1

Description

Masse principale, une pièce unique !

Livrée avec certificat.

Informations complémentaires

Poids 15,6 g
Dimensions 2,5 × 2 × 2 cm
Forme

Talon

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