Amazon Valley Jasper, Cabochon 40×30, a multicolor water worn rocks/boulders found in the state of Mato Grasso, Brazil. Some of the colors are white, cream, pink, red, gray-blue, brown, black, yellow, and tan. No two stones are alike, the colors and patterns very greatly! With shades reds, white, black, and browns this cabochon also has a high dome and glossly polish.