Blue Sea Sediment Imperial Jasper Dyed Necklace. 2 rows of Imperial Jasper. Very Heavy Necklace. Sea Sediment Imperial Jasper (also known as Aqua Terra Jasper) is a vibrant, often turquoise-coloured, patterned gemstone known for its deep grounding, stabilising, and calming properties. It is frequently used in jewelry to promote emotional healing, reduce stress, and foster a connection with nature. Often featuring, it is sometimes described as a composite stone or, in some cases, a high-quality, treated, or dyed material to achieve its vivid, marbled appearance.