Scenic Agate gemstone, a member of the Agate family, is a stone with fern-like fringes and white dendrites. The tree-like inclusion seen is made up of iron or magnesium. The pebble belongs to the Chalcedony family, and it is available in gray, white, or colorless hues. This natural tumbled stone is cut into thin layers and set into sterling silver to make gorgeous embellishments.