This etched Aletai meteorite slice originates from the Aletai iron meteorite, discovered 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 inside the metallic core of a differentiated asteroid. After cutting and polishing, the slice is acid etched to reveal the Widmanstätten pattern formed by nickel-iron crystals.
This piece weighs 237 grams and presents a well-developed pattern of metallic crystal bands across the surface. These structures formed during long-term cooling within the parent asteroid. Its size and clear structural definition make it a solid display-quality specimen.