Orbicular Jasper

question mark article explains what orbicular jasper is

Orbicular jasper is a variety of jasper which can usually be identified by its distinctive orbs or spherical markings.  As a polished mineral, it is most frequently used either for ornamental purposes or as a gemstone.  There are many varieties of orbicular jasper which can be found around the world but one of the rarest and best known is ocean jasper.  Ocean jasper is found exclusively in Madagascar but sadly it's now completely mined out meaning there's no gem grade material left available to mine.