Energicly speaking, the Onyx is knows for absorbing energy of lower vibration, you could say the stone takes care of you more that you need to take care of it.
The Onyx represents the Point Cero, the universal great, the great dream of God. It´s under the regency of Pluto, master of life and death of all his prowess.
It’s the Great protector of stones, absorbed like a black hole any negative energy inside of us or that come outside for us. Also cleans spirituality your house if you put it in some spaces.
The goodness of Onyx allows that to be a stone of low caring, in case of losing of shining, which case could appear after seven months of dust or been in outside places.
We recommend using Mira Matte you can find this product in Home Depot