Drusy is a naturally occuring crystalline structure that manifests on agate, quartz, chalcedony, amethyst, citrine, etc. Sometimes it is very fine and referred to as sugar drusy (looks like granulated sugar). Sometimes it looks like a blossom or crystals, sometimes like raw sugar. All the drusy on is real and mainly mined in Urugay, Brazil, and Madagascar. Drusy can be and is found all over the world. None of the Drusy on this site is man made or resin.