Guru stone is for spiritual growth. Thus, it is worn on first finger of right hand. It is worn with gold as gold gives fierce effect.
Shukra stone: Shukra stands for Shukracharya. He was guru of asuras (demons). He always tried to control negativity in the asuras. Thus, he controls and retards negativity. Thus, shukra stone helps to prevent negative forces from affecting you. It is worn with silver as silver gives a cooling effect.
- These are topics of various aspects of spirituality as told by Para.