This shell called a Spiralite is estimated to be over 100 million years old, each of these shell/Geodes is the unusual left hand coiling kinds which is a rarity in the domain of shells. Completely agatized and replaced by stunning quartz druzies in a myriad of colors & crystal types making each one a unique and desirable gem that treads the boundary between fossil and crystals. Found on a pristine hill in central India which was once under the Prehistoric sea called Tethys, these geodes are found embedded in an extremely hard rocky matrix and each one has to be carefully extracted by hand.great as a specimen or as natural pendant.