Saint-Aubin (iron, IIIAB) – shale

 10.00

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Description

Shale coming from the main mass of Saint-Aubin.


Saint-Aubin

Aube Champagne, France

Found 1968

Iron, octahedrite (ungrouped)

Five masses of total weight 472 kg were found by farmers while ploughing, within a strewn field a few miles across. Classification (E. Dransart and M. Baron, EMTT): kamacite bandwidth 0.4 mm; bulk composition Ni = 11.5 ± 1%, Co = 4 mg/g, P = 2 mg/g, Ir = 0.02 µg/g, Ga = 28 µg/g, Ge = 83 µg/g. The meteorite contains sarcopside and/or graftonite and needles of schreibersite up to 6 cm in length. It shows typical shock features (Neumann lines and shock-hatched kamacite). Specimens: type specimen 86 g MNHNP; 500 g EMTT; main mass with finders.

Total mass is now about 7 tons after extensive search in the 2020’s.

Additional information

specimen nr

shale nr 20, shale nr 21, shale nr 22