Shell Jasper Sphere $47.99The Shell Jasper Sphere is a polished stone piece that highlights the intricate patterns and textures formed from ancient marine material preserved within jasper. Shaped into a smooth sphere with a 2. 5inch diameter, its ideal for display on desks, shelves, or in study collections, and works especially well for geology students and rock enthusiasts interested in sedimentary processes and fossilrich stones. Its rounded form allows the patterns to be