Onyx is mined in India, Brazil, USA(California), Uruguay.
There are many different theories over the working of onyx depending on which part of the world you find yourself in – In times gone by the Europeans associated black onyx with physcic attacts and witchcraft and expectant mothers were not using the stone as they believed it promoted miscarriage but on the Indian subcontininent the opposite was believed true! Now we believe onyx to help us heal old trauma it will us intregate our beliefs and will aline us with higher powers. It will help us integrate universal energy. When used in combination with other stones it will consolidate the working of these stones en enhance them.
Onyx will help us in adverse circumstances and it is good to wear this stone in times of bereavement because it give strength and support. It will help the wearer keep his or her emotion under controll thus it can be used for grounding .