Rough Onyx

Onyx is a form of chalcedony, which is a microcrystalline quartz formed in the gas cavities of lava. The black color of the stone has been associated with regeneration and new beginnings. 

For years, Mail Order Gems has provided thousands of loose-faceted gemstone lots. Our team makes it a priority to provide exemplary service and maintain total customer satisfaction. Whether you’re interested in rock tumbling, wire wrapping, rock collecting, or crystal healing, Mail Order Gems has you covered. Order your rough onyx and other rough gemstones today.