![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjy7YGP1PvUm0oHJ2kodcnmCbkhM7XZiUoNyWp1ZcHXLlglzwM8EYaRaXdVRA-LioxGPrTrTLF1q0Bc-DqalxEMw01szFt-ycoOZht-sdQwqbjS8X2AfN7LClRchl9ONAsjLx14u2idj1qb/s400/kentucky-agate.jpg)
UPDATE: A fellow KYANA Geological Society member looked over this entry and pointed out some issues. She pointed out this agate formed inside a brachiopod. Remnants of the shell can be seen around the edge. So this really is somewhat of a fossil. Also it should be classified as a rock instead of a mineral.