ROCK CRYSTAL FOR VENUS
It is also semi-stone (up-Ratna) of Shukra. Its use diminishes
bad thoughts & brings peace in one's mind & can have sound
sleep. It's string (Beads or necklaces) bring calmness of mind
and also used for holy purpose.
It is mostly used for spiritual purpose , meditation ,worship.etc.Crystal
balls, stones, beads ,statues and others.