Onyx. Chalcedony in parallel layers of different shades of color. It is used for making cameos, the figure being cut in one layer with the next layer as a background. It is stained black and used to make mourning jewelry.

---

“Surely he took up our infirmities and carried our sorrows, yet we considered him stricken by God, smitten by him, and afflicted.”
– Isaiah 53:4