A yellow freeform datolite cabochon with slight copper inclusions. Size is approximately 20x41mm. A stone that is cut and polished, ready for you to use for your own jewelry creations. It can be used for wire wrapping or even bezel setting, it's all up to you. Datolite Datolite is a borosilicate mineral (hardness 5 to 5.5). It is associated with native copper deposits in Michigan's Keweenaw Peninsula. The characteristics 'cauliflower' shaped nodules range from 1-12 inches. The rarest colors are yellow, orange, green, and red. White and pink are more common. At time specks of copper or silver appear with the datolite. This rare mineral is found in old waste rock piles and in Lake Superior.