Agate can be a sort of chalcedony, a stone made predominantly of silica and formed under intensive heat, and comes in numerous shades and patterns. In regards to this type of gemstone, the names of the different types of agate beads are visually descriptive: tiger’s eye, fireplace agate beads, moss https://www.gemsbiz.com/blog/explore/where-to-buy-faceted-gemstone-beads