Here is a list of onyx benefits:

Brings motivation and courage
Cleans residual energies from past lives
Reduces stress
Brings serenity and self-confidence

Acts on ear pain and improves hearing
Strengthens skin, hair and nails
Improves blood circulation and organs (spleen, liver, pancreas)
Supports foot health

Astrological sign compatible with onyx

Virgin
Gemini
Lion
Balance
Scorpio
Sagittarius
Capricorn
Aquarius
Pisces

corresponding chakra

Heart

Maintenance

Purifies in unsalted water
Recharges in sunlight and or on a cluster of quartz

This stone is available as rolled stone , bracelet and pearl thread

The virtues and properties of stones and crystals are given for information only and do not in any way avoid medical treatment.