Answer:
High temperature
Step-by-step explanation:
Drastic increase in temperature can cause bonds between atoms to change and reorganise. Temperature furnishes atoms the necessary energy to change position and form new bonds.
Increase in temperature coupled with increasing pressure drives metamorphic mineral changes in rocks. During metamorphic changes, new minerals froms as a result of atoms being reorganized.
Temperature simply provides kinetic energy for atoms to move and reorganize themselves.