This is an nice but small example of Leopard Skin Jasper, in the shape of an oval. This sample is good for those interested in collecting the many forms of agate, jasper, or sometimes other minerals, or for those interested in pendant jewelry.
Jasper is a form of chalcedony quartz, and is opaque rather than clear or translucent like regular quartz or agate. It contains an abundance of impurities which give its interesting appearance. I understand that there are over 3,000 forms of Jasper.
Although this is a cab, you can also glue on "bails", or have the piece drilled to accept a pinch bail. Either approach will let you turn this sample into a fine pendant.