Drusy stones were formed millions of years ago when hot, silica-saturated groundwater seeped into porous mineral layers, says Bernardine Gemstones. The rock cooled the water enough for the silica to crystallize into quartz, which filled the pores of the mineral layer. Over geological eons, the mineral layer worked its way to the surface, where humans discovered these pretty, shiny rocks and made drusy jewelry from them. Drusy stones have been known for many years, but they became popular as jewelry only in the last 10 years or so.
Reminder: Due to the nature and origin of the pieces, they may vary in image, weight and measurements, as well as their price depending on the variants. Before confirming your purchase, check these items.