18 X 12 Agate Sink / Wash Basin Gemstones Work Home Decor
Finding Natural Agate Petrified Wood Gemstones At The Mountain Unbelievable satisfying crystals
Agate generally forms by the deposition of silica from groundwater in the cavities of igneous rocks. The agate deposits in concentric layers around the walls of the cavity, or in horizontal layers building up from the bottom of the cavity.