Product description
Tinted and heated chalcedony.
Please note: Each bead is unique and can therefore differ from the illustration.
The onyx belongs to the Chalcedony family. Black onyx stone is not originally black. It is treated by being immersed in a solution of black sugar and acid. The soft, porous nature of the stone allows the solution to soak in. After immersion, the stone is then heated. This is a common process that makes the colour deeper and longer lasting.
Sold per 1 piece.
