Salt Water Cleansing
Fill a bowl with lukewarm water and add a few tablespoons of sea salt. Place your onyx stone in the water and let it sit for a few hours or overnight.
Smudging
Burn sage or palo santo and pass your onyx stone through the smoke to clear away negative energies.
Sunlight
Place your onyx stone in direct sunlight for a few hours to recharge and clear away negative energies.
Moonlight
Place your onyx stone under the light of the full moon to purify and restore balance.
Sound Cleansing
Use sound vibrations from a singing bowl or tuning fork to cleanse your onyx stone.