The beauty of Mother Nature is fully displayed in this Rainbow Cal-Silica stone, set in Sterling Silver, Pendant. Rainbow Cal-Silica is very new to the gem stone scene. It is a natural material mined from a rock called volcanic rhyolite. The entire pendant measures 1" x 3/4" and the stone measures approximately 3/8" x 1/2”. While all our pieces are handmade and crafted to be unique, Rainbow Cal-Silica adds to the uniqueness by no stone ever being the same. The high-red color is accented in this pendant with a beautiful sterling silver bezel. Native Americans from the Four Corners in Arizona, New Mexico, Utah and Colorado crafted this piece to conform to Native Artistry’s high demand for quality. We back this quality up with a 100% customer satisfaction guarantee. Make your connection with Mother Nature by wearing this exquisite piece within days of ordering.