This etched Aletai meteorite slice is produced from the Aletai iron meteorite, first recorded in 1898 in the Altay region of Xinjiang in northwest China. The meteorite is classified as a coarse octahedrite and formed more than 4.5 billion years ago within the metallic interior of an ancient asteroid. The slice has been polished and acid-etched to reveal the Widmanstätten pattern, a crystalline nickel-iron structure created by extremely slow cooling in space.
Weighing 215 grams, this specimen displays a balanced arrangement of metallic crystal bands across the etched surface. These internal structures formed during prolonged cooling within the parent asteroid. Its clarity of structure and known provenance make it a strong collector-grade specimen.