Black Onyx Stones & Crystals
Black onyx is a smooth, glossy black stone from the chalcedony family that takes a deep, even polish. Most black onyx sold today is chalcedony or agate that has been dyed to get its solid color, which is the industry standard. Shop black onyx polished hearts, large puffy hearts, carved figures, faceted obelisk pendants and tumbled chips by the pound. Its simple, dramatic look pairs well with almost any crystal collection and makes an easy, affordable gift. For banded cream and honey-colored onyx bowls and decor, see our Mexican onyx collection.