Ataxite

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Ataxites are a class of iron meteorites. They are composed mainly of the alloy taenite, and also contain plessite, troilite, and microscopic lamellae of kamacite. They have no visible Widmanstätten pattern. Ataxites are the most nickel-rich meteorites known (usually contain over 18% nickel).

They are a rare class, with none of the about 50 observed iron meteorite falls being an ataxite, however, the largest meteorite ever (the Hoba meteorite) belongs to this class.

 

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