This Specimen has been sold.
4.6" Colorful, Polished Jasper Bowl - Madagascar
This is a colorful, 4.6" wide decorative bowl made from hand polished jasper. This material comes from the Ambolobozo Peninsula of Madagascar in the same region that ocean jasper is collected from.
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.
Chalcedony var. Jasper
Ambolobozo Peninsula, Madagascar
4.6 x 4.6 x 1.75"