Sikhote-Alin Meteorite 28.25g Special-shaped attractive crust oriented feature

Sikhote-Alin Meteorite 28.25g Special-shaped attractive crust oriented feature1. Basic InformationName: Sikhote-Alin Iron MeteoriteClassification: Iron Meteorite, Group IIABLocation: Primorsky Krai, Russia (Sikhote-Alin Mountains)Fall Date: February 12, 1947 (One of the most spectacular observed meteorite falls in modern history)Status: Witnessed Fall, subsequently recovered.Weight: 28.25 g2. Key Feature Description (The Textbook Example of an Oriented Fall)Highly Oriented: This specimen is a global benchmark for an "oriented fall." It maintained an extremely stable attitude during atmospheric transit, forming a perfect aerodynamic cone or shield shape, with the tip being the leading edge (front).Rolling Lip (Curled Edge): On the leading edge, molten iron from extreme heating was swept backward by supersonic airflow, accumulated, and instantly solidified, forming a distinctive metallic curled lip. This is the most iconic feature of oriented Sikhote-Alin specimens, a physical imprint of its "flight" path.Flow Lines (Fusion Striations): The entire fusion crust, especially on the sides and rear, is covered with sharp, dense, parallel metallic flow lines. These linear textures were formed as the molten surface material was stretched and solidified under the shear force of the airflow, as if carved by high-speed wind, precisely indicating the flight direction.3. Scientific & Collection HighlightsHistorical Significance: The 1947 fall event was extensively documented and studied by Soviet scientists, forming a cornerstone of modern meteoritics. It provides a complete data chain from orbit calculation to ground recovery.Aesthetic Paradigm: Oriented Sikhote-Alin individuals are celebrated as some of "the most beautiful meteorites." Their fluid shape, shiny crust, and exquisite flow lines perfectly blend natural violence with the beauty of cosmic sculpture.Research Value: An excellent specimen for studying meteorite atmospheric dynamics, ablation processes, and mass loss. Its oriented features provide an intuitive model for understanding how asteroidal fragments enter Earth's atmosphere.Rarity: Although the total recovered mass of Sikhote-Alin is large, complete individuals with such sharp and distinct oriented features remain scarce and highly sought-after in the collector's market.Thank you for viewing this listing, and I wish you a smooth and successful transaction!