This Specimen has been sold.
3.9" Polished Jasper Sphere - Madagascar
This is a beautiful, hand polished sphere made from red and yellow jasper found in the deserts of Madagascar. It is 3.9" wide and weighs just under 3 lbs. It features red, orange and yellow coloration, with spots of white agate peppered throughout the sphere. The sphere comes with the pictured stand, displays nicely on a hard surface and would be suitable as either an indoor or outdoor decorative piece.
Jasper is a term that can be applied to an opaque variety of chalcedony (light does not pass through it). The opaqueness is due to a higher concentration of impurities mixed with silica/quartz. Like agate it may form in a wide variety of colors, and is often multi-colored. In most cases, jasper will occur when silica-rich fluids permeate throughout a soft sediment or volcanic debris deposit. The fluids then crystallize around the particles/impurities, resulting in a cementation process. Most often, the impurities present determine the coloration of the deposit following solidification, however other factors can play a role in the color of what is now considered a jasper.