Onyx: Onyx helps obtain the sense of responsibility and self-control. It also helps acquire sound judgment, fair decision making, discipline and concentration.
It is a stone rooted to the ground.
Rudraksha: Possessing very powerful energetic qualities, the seeds of the rudraksha tree are perhaps the most used by spiritual seekers and yogis in their practice.
Rudraksha helps destroy negativity, overcome obstacles on the path of enlightenment, purify speech and deeds, and find inner peace. These seeds also increase concentration abilities, they are widely used by those who practice meditation.