Onyx is a form of quartz. Commonly, specimens of onyx available contain bands of colors of white, tan, and brown. Pure black onyx is common, and perhaps the most famous variety, but not as common as onyx with banded colors. It has a long history of use for hardstone carving and jewelery, where it is usually cut as a cabochon, or into beads, and is also used for intaglio or cameo engraved gems.
Black Onyx enhances steadfastness and determination, setting ones mind to a task. It’s a grounding stone, valuable in difficult and confusing times in our lives. Extremely helpful to people in the process of letting go.