Agate can be a type of chalcedony, a stone produced predominantly of silica and shaped beneath extreme heat, and comes in lots of colours and designs. In terms of this kind of gemstone, the names of the different types of agate beads are visually descriptive: tiger’s eye, hearth agate beads, https://www.gemsbiz.com/blog/explore/where-to-buy-faceted-gemstone-beads