About Jasper Jewelry
Jasper is an opaque rock of virtually any color stemming from the mineral content of the original sediments or ash. Patterns arise during the consolidation process forming flow and depositional patterns in the original silica-rich sediment or volcanic ash. Hydrothermal circulation is generally thought to be required in the formation of Jasper.
The name means "spotted or speckled stone", and is derived via Old French jaspre (a variant of Anglo-Norman jaspe).