Herkimer Diamond Quartz Double Terminated

Shop double-terminated Herkimer diamond quartz crystals known for exceptional natural brilliance, glass-like clarity, and 18-faced double terminations. Featuring natural water clear crystals and specimens with hydrocarbon inclusions, our double-terminated quartz collection delivers premium quality for display and wire-wrapping jewelry.

Are Herkimer diamonds actual diamonds?

No, they are naturally double-terminated quartz crystals named for their diamond-like clarity and geometry.

Are these crystals naturally faceted?

Yes, Herkimer diamond quartz crystals grow naturally with double terminations and 18 distinct facets without human cutting.

What causes dark specks inside some Herkimer crystals?

Dark inclusions are typically anthraxolite, a solid hydrocarbon remnant trapped during crystal formation millions of years ago.