Ocean jasper and prasiolite pendant: I designed this unusual Ocean Jasper and Prasiolite (green quartz) pendant to make a statement. This hammered sterling silver pendant is one of my favorite pieces of jewelry. The pendant is sterling silver with a tube set accent of faceted green prasiolite (green quartz or green amethyst). The pendant measures 2.75 inches by 1.25 inches. I textured the silver background with chasing tools. Questions? Contact me.