Seymchan

With octahedrite and pallasite crystals.

Seymchan belongs to Main Group pallasites, but it is considered anomalous due to its high iron content. Before the discovery of its pallasitic structure it had been classified as IIE anomalous coarse octahedrite. Seymchan is considered a stable and rust-resistant pallasite.

Due to the heterogeneous structure of Seymchan, there are two types of specimens: with or without olivine crystals.