Abstract
Analytical data of Nio meteorite sherules (Yamaguchi, Japan), PTB spherule (Meishan, China), and impact-related breccias indicate that 1) FeNi minerals are separated after high temperature reaction to Ni-rich spherules or particles, 2) new tweedy and lamellar texture of spherules are formed with Fe-Ni and Al-Si chondritic elements, and 3) Ni-rich deposit of Sudbury are related with formation of Ni-rich materials from FeNi minerals.