Aletai Iron Meteorite Slice – Octahedrite Specimen, 140 g

This 140 g iron meteorite slice is from the Aletai meteorite in Xinjiang, China. The slice preserves the natural metallic structure typical of iron meteorites and clearly displays the characteristic Widmanstätten pattern. It has been carefully cut to show the internal features of this octahedrite section. A certificate of authenticity is provided by members of leading meteorite associations.

Features
• Name: Aletai Iron Meteorite
• Type: Iron Meteorite
• Classification: IIIE‑an
• Dimensions: approx. 90 × 50 × 10 mm
• Weight: 140 g
• Origin: Parent body: unknown / likely asteroid (iron meteorite)
• Found: Xinjiang, China
• Form: Slice
• Discovery Date: 1898
• Certification: Certificate of authenticity issued by my shop

Scientific and Physical Characteristics
The Aletai iron meteorite is a classic octahedrite with its characteristic internal metallic structures and belongs to the IIIE-an chemical group, indicating a moderate nickel content and a typical iron-nickel composition dominated by kamacite and taenite. Its octahedrite structure reflects slow cooling within the metallic core of a differentiated asteroid, allowing the formation of large, interleaved metallic crystals. The Widmanstätten pattern visible in this slice provides insight into the cooling rate and crystallization history of the parent body. Trace elements such as gallium, germanium, and iridium can be used to confirm its classification and provenance. The slice’s polished surface reveals the metallographic texture, making it suitable for scientific study and comparison with other IIIE-an specimens.