Rare double terminated quartz crystals from the Herkimer mine in Herkimer County, New York, form an organic stack of super clean sparkle. A double terminated crystal is a crystal with two naturally faceted ends. Each crystal measures approx. 7mm - 9 mm, and form a stack of approx. 3/4" (1.9cm). They dangle from 3" (7.62cm) sterling silver box chain ear threads. The earrings in the pictures have been sold, but your stones will come from the same strand of sublime sparkle. Gorgeous for everyday, they can be dressed up or down, so equally as lovely for bridal jewelry.