onyx is a crossword puzzle answer that we have spotted 17 times. Agate Gemstone Cameo stone Striped stone Type of agate Ornamental stone Whitish gemstone Types of gemstones Semiprecious form of agate Mineral with coloured layers Semiprecious variety of agate Birthstone for zodiac sign Leo Hard stone with coloured layers Gemstone, a variety of chalcedony Semiprecious stone used for cameos Variety of agate used for making cameos stone deepest of all, also in empty box