Agate is actually a kind of chalcedony, a stone created predominantly of silica and formed below intense heat, and is available in many shades and patterns. When it comes to this type of gemstone, the names of the different sorts of agate beads are visually descriptive: tiger’s eye, fireplace agate https://www.gemsbiz.com/blog/explore/where-to-buy-faceted-gemstone-beads