Herkimer diamond quartz on sterling silver. 7/8" long from top of wire to bottom of quartz. Herkimers are approx 3/8" wide.
A double-terminated quartz that makes it have multiple “faces” that join in diamond-like patterns. Herkimer diamonds are rated seven on a 10-point hardness scale as compared to the diamond, which rates 10. Geologists believe Herkimer diamonds began forming inside crevices in a shallow sea almost a half a billion years ago.